Remember that successfully completing a root cause troubleshooting is not black magic reserved for experienced professional mechanics, but is determined by a combination of specific knowledge and a patient, systematic approach to investigating the problem. You should always move from simple to complex, bring each check to its logical conclusion and try not to miss obvious facts - anyone can forget to fill the fuel tank or leave lights on at night.
Finally, you should always try to get a clear picture of the development of the malfunction and take appropriate steps to prevent recurrence. If the failure of the electrical equipment occurred due to a violation of the quality of the contact, check at the same time the condition of all other contacts and electrical connectors of the system. If the same fuse continues to blow several times in a row, there is no point in replacing it further - you must try to find out the cause of the failure. Remember that the failure of a minor component may be a sign of a malfunction of a more important node or the entire system.
1. Engine
Engine won't crank when trying to start
- Loose or oxidized battery terminal connections (Schedule of ongoing maintenance).
- The battery is discharged or defective (Chapter Engine electrical equipment).
- Broken, loose or disconnected wiring in the starter circuit (Chapter Engine electrical equipment).
- Defective starter relay or switch (Chapter Engine electrical equipment).
- Faulty starter (Chapter Engine electrical equipment).
- Broken starter gear or flywheel gear teeth (Chapters Engine repair, And Engine electrical equipment).
- Broken or disconnected engine ground cable (Chapter Engine electrical equipment).
Engine cranks but won't start
- Empty fuel tank.
- Low battery (motor rotates slowly) (Chapter Engine electrical equipment).
- Loose or oxidized battery terminal connections (Chapter Maintenance).
- Shunted or damaged ignition components - petrol models (Chapters Maintenance and Engine electrical equipment).
- Broken, loose, or disconnected wiring in the ignition circuit - gasoline models (Chapters Maintenance and Engine electrical equipment).
- Spark plugs worn, defective or incorrectly adjusted electrode gap - models with a gasoline engine (Chapter Maintenance).
- Faulty preheating system - diesel models (Chapter Engine electrical equipment).
- Faulty fuel injection system - models with a gasoline engine (Chapter Power systems, release).
- Faulty fuel cut-off valve - diesel models (Chapter Power systems, release).
- Air in the fuel system - diesel models (Chapter Power systems, release).
- Serious mechanical failure (e.g. camshaft drive) (Chapter Engine repair).
Cold engine difficult to start
- Low battery (Chapter Engine electrical equipment).
- Loose or oxidized battery terminal connections (Chapter Maintenance).
- Spark plugs worn defective or improperly adjusted electrode gap - models with a gasoline engine (Chapter Maintenance).
- Faulty preheating system - diesel models (Chapter Engine electrical equipment).
- Faulty fuel injection system - models with a gasoline engine (Chapters Maintenance and Engine electrical equipment).
- Fast Idle Valve Improperly Adjusted - Diesel Models (Chapter Power systems, release).
- Low compression in the engine cylinders (Chapter Engine repair).
Warm engine difficult to start
- Air filter element dirty or blocked (Chapter Maintenance).
- Fuel Injection System Malfunction - Gasoline Engine Models (Chapter Power systems, release).
- Low compression in the engine cylinders (Chapter Engine repair).
Starter motor noisy or rudely engaged with flywheel ring
- Broken starter gear teeth or flywheel ring gear (Chapters Engine repair and Engine electrical equipment).
- Loose or missing starter mounting bolts (Chapter Engine electrical equipment).
- Worn or damaged internal starter components (Chapter Engine electrical equipment).
Engine starts but immediately stalls
- Loose or defective ignition circuits - models with a gasoline engine (Chapters Maintenance and Engine electrical equipment).
- Vacuum leak in throttle body or intake manifold - petrol models (Chapter Power systems, release).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
Unstable operation in idle mode
- Air filter element blocked (Chapter Maintenance).
- Vacuum leak in throttle body, intake piping, or associated hoses - Gasoline Models (Chapter Power systems, release)
- Spark plugs worn, defective or incorrectly adjusted electrode gap - models with a gasoline engine (Chapter Maintenance).
- Unequal or low compression in the engine cylinders (Chapter Engine repair).
- Worn camshaft cams (Chapter Engine repair).
- Toothed drive belt tensioned incorrectly (Chapter Engine repair).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
- Faulty injector - diesel models (Chapter Power systems, release).
Ignition misfires at idle
- Spark plugs worn, defective or incorrectly adjusted electrode gap - models with a gasoline engine (Chapter Maintenance).
- Faulty spark plug high voltage wiring - gasoline models (Chapter Maintenance).
- Vacuum leak in throttle body, intake piping, or associated hoses - Gasoline Models (Chapter Power systems, release).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
- Faulty injector - diesel models (Chapter Power systems, release).
- The distributor cap is cracked or burned from the inside - models with a gasoline engine (where applicable) (Chapter Engine electrical equipment).
- Unequal or low compression in the engine cylinders (Chapter Engine repair).
- Disconnected or damaged crankcase ventilation hoses (Chapter Power systems, release).
Misfires in all operating modes
- Clogged fuel filter element (Chapter Maintenance).
- Faulty priming pump, or low supply pressure - models with a gasoline engine (Chapter Power systems, release).
- Drain hole in the fuel tank is blocked, or the flow area of the fuel lines has decreased (Chapter Power systems, release).
- Vacuum leak in throttle body, intake piping, or associated hoses - Gasoline Models (Chapter Power systems, release)
- Spark plugs worn, defective or incorrectly adjusted electrode gap - models with a gasoline engine (Chapter Maintenance).
- Faulty spark plug high voltage wiring - gasoline models (Chapter Maintenance).
- Faulty injector - diesel models (Chapter Power systems, release).
- The distributor cap is cracked or burned from the inside - models with a gasoline engine (where applicable) (Chapter Engine electrical equipment).
- Faulty ignition coil - petrol models (Chapter Engine electrical equipment).
- Unequal or low compression in the engine cylinders (Chapter Engine repair).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
Engine fails when pressing gas pedal
- Spark plugs worn, defective or incorrectly adjusted electrode gap - models with a gasoline engine (Chapter Maintenance).
- Vacuum leak in throttle body, intake piping, or associated hoses - Gasoline Models (Chapter Power systems, release).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
- Faulty injector - diesel models (Chapter Power systems, release).
Engine stalls
- Vacuum leak in throttle body, intake manifold, or through hoses - Gasoline Models (Chapter Power systems, release).
- Clogged fuel filter (Chapter Maintenance).
- Faulty priming pump, or low supply pressure - models with a gasoline engine (Chapter Power systems, release).
- Drain hole in the fuel tank is blocked, or the flow area of the fuel lines has decreased (Chapter Power systems, release).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
- Faulty injector - diesel models (Chapter Power systems, release).
The engine does not develop full power
- Incorrectly installed or tensioned toothed drive belt (Chapter Engine repair).
- Clogged fuel filter (Chapter Maintenance).
- Faulty priming pump, or low supply pressure - models with a gasoline engine (Chapter Power systems, release).
- Unequal or low compression in the engine cylinders (Chapter Engine repair).
- Spark plugs worn, defective or incorrectly adjusted electrode gap - models with a gasoline engine (Chapter Maintenance).
- Vacuum leak in throttle body, intake piping, or associated hoses - Gasoline Models (Chapter Power systems, release).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
- Faulty injector - diesel models (Chapter Power systems, release).
- Injection timing incorrectly set - diesel models (Chapter Power systems, release).
- Wheel braking (Chapters Maintenance and Brake system).
- Clutch slip (Chapter Clutch).
The engine kicks back
- Incorrectly installed or tensioned toothed drive belt (Chapter Engine repair).
- Vacuum leak in throttle body, intake piping, or associated hoses - Gasoline Models (Chapter Power systems, release).
- Drain hole in the fuel tank is blocked, or the flow area of the fuel lines has decreased (Chapter Power systems, release).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
The oil pressure warning light comes on when the engine is running
- Low oil level, or wrong grade of oil filled.
- Faulty oil pressure sensor (Chapter Engine electrical equipment)
- Worn crankshaft bearing shell and/or oil pump (Chapter Engine repair).
- High engine operating temperature (Chapter Cooling, heating systems).
- Defective oil pressure relief valve (Chapter Engine repair).
- Clogged oil pump suction tube strainer (Chapter Engine repair).
Engine running after shutdown
- Excessive soot in the engine (Chapter Engine repair).
- High engine operating temperature Chapter Cooling, heating systems).
- Fuel Injection System Malfunction - Gasoline Engine Models (Chapter Power systems, release).
- Defective fuel cut-off valve - diesel models (Chapter Power systems, release).
Noise in the engine
- Preignition (detonation) or detonation under acceleration or under load.
- Incorrect ignition timing / malfunction in the ignition system - models with a gasoline engine (Chapters Maintenance and Engine electrical equipment).
- Spark plugs do not match engine type - petrol models (Chapter Maintenance).
- Wrong grade of fuel (Chapter Maintenance).
- Vacuum leak in throttle body, intake piping, or associated hoses - Gasoline Models (Chapter Power systems, release).
- Excessive soot in the engine (Chapter Engine repair).
- Clogged injector / malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
Whistling and hissing when the engine is running
- Leakage in the intake manifold gasket or throttle body - models with a gasoline engine (Chapter Power systems, release).
- Leakage at exhaust manifold gasket or exhaust pipe-to-manifold connection (Chapter Power systems, release).
- Vacuum hose leak (Chapters Power systems, release, Engine electrical equipment and Brake system).
- Cylinder head gasket damage (Chapter Engine repair).
Tapping or rattling
- Worn valve train or camshaft (Chapter Engine repair).
- Auxiliary components damaged (water pump, generator, etc.).
Low frequency knock
- Worn connecting rod bearings (rattling or rattling, possibly worse under load) (Chapter Engine repair).
- Piston knock (most noticeable when the engine is cold) (Chapter Engine repair).
2. Cooling system
Overheat
- Insufficient amount of coolant in the system (Schedule of ongoing maintenance).
- Faulty thermostat Chapter Cooling, heating systems).
- Radiator channels blocked or grille Chapter Cooling, heating systems).
- Faulty electric fan or thermal switch Chapter Cooling, heating systems).
- Inaccurate temperature sensor or indicator on the panel Chapter Cooling, heating systems).
- Air lock in the cooling system Chapter Cooling, heating systems).
- Expansion tank cap defective Chapter Cooling, heating systems).
Hypothermia
- Faulty thermostat Chapter Cooling, heating systems).
- Inaccurate temperature sensor or indicator on the panel Chapter Cooling, heating systems).
Coolant leaking out
- Damaged hoses or loose hose clamps (Chapter Maintenance).
- Leakage of tubes of a radiator or a heater Chapter Cooling, heating systems).
- Damaged radiator cap Chapter Cooling, heating systems).
- Destruction of the cuff of the water pump Head Cooling, heating systems).
- Gasket leakage between water pump and cylinder block Chapter Cooling, heating systems).
- Boiling due to overheating (Chapter Cooling, heating systems).
- Block plug leakage (Chapter Engine repair).
Coolant leak inside (usually in the oil pan)
- Cylinder head gasket leak (Chapter Engine repair).
- Crack in the head or cylinder block (Chapter Engine repair).
Corrosion
- Infrequent draining of fluid and flushing of the system (Chapter Maintenance).
- Poor quality coolant or the correct type of coolant (Chapter Maintenance).
3. Fuel and exhaust systems
Excessive fuel consumption
- Air filter element dirty or clogged (Chapter Maintenance).
- Malfunction in the fuel injection system - models with a gasoline engine (Chapter Power systems, release).
- Faulty injector - diesel models (Chapter Power systems, release).
- Incorrect ignition timing / damaged ignition system - models with a gasoline engine (Chapters Maintenance and Engine electrical equipment).
- Low tire pressure (Schedule of ongoing maintenance).
Fuel leak and/or fuel smell
- Damaged or corroded fuel tank, pipes or connections (Chapter Power systems, release).
Excessive noise or smoky exhaust
- Leakage at exhaust or manifold connections (Chapters Maintenance and Power systems, release).
- Leaking, corroded or damaged muffler or exhaust pipes (Chapters Maintenance and Power systems, release).
- Suspensions are broken, due to which the exhaust system touches the body or suspension (Chapter Maintenance).
4. Clutch
Pedal drops or pushes with little resistance
- Loose or broken cable (Chapter Clutch).
- Leak or other malfunction in the brake hydraulic clutch system - where applicable (Chapter Clutch).
- Incorrect adjustment of the clutch pedal travel (Chapter Clutch).
- Broken release bearing or lever (Chapter Clutch).
- Broken diaphragm spring in clutch pressure plate (Chapter Clutch).
Clutch won't disengage (unable to change gear)
- Incorrect adjustment of the clutch pedal stroke (Chapter Clutch).
- Clutch friction disc sticking on gearbox input shaft grooves (Chapter Clutch).
- Clutch friction plate stuck to flywheel or pressure plate (Chapter Clutch).
- Faulty pressure plate block (Chapter Clutch).
- Worn or tightly assembled clutch release mechanism (Chapter Clutch).
Clutch slip (increasing engine speed without increasing vehicle speed)
- Excessively worn clutch linings (Chapter Clutch).
- Clutch friction linings contaminated with oil or grease (Chapter Clutch).
- Pressure plate defective or diaphragm spring weak (Chapter Clutch).
When the clutch is engaged, the car starts to jerk
- Clutch friction linings contaminated with oil or grease (Chapter Clutch).
- Excessively worn clutch linings (Chapter Clutch).
- Faulty or deformed pressure plate or diaphragm spring (Chapter Clutch).
- Worn or loose engine or transmission mounts (Chapter Engine repair).
- The grooves of the hub of the friction disc of the clutch or the input shaft of the gearbox are worn out (Chapter Clutch).
Noise when pressing or releasing the clutch pedal
- Worn release bearing (Chapter Clutch).
- Clutch pedal pivot pin worn or not lubricated (Chapter Clutch).
- Faulty pressure plate block (Chapter Clutch).
- Broken diaphragm pressure plate (Chapter Clutch).
- Broken clutch damper springs (Chapter Clutch).
5. Manual gearbox
Noise in neutral with engine running
- Worn input shaft bearings (The noise only occurs when the clutch pedal is released, not when pressed) (Chapter Transmission) *.
- Worn release bearing (noise only occurs when the clutch pedal is depressed, possibly decreases when the pedal is released) (Chapter Clutch).
Noise in one single gear
- Worn, damaged or chipped gear teeth (Chapter Transmission).*
Difficulty shifting gears
- Faulty clutch (Chapter Clutch).
- Worn or damaged shift rod (Chapter Transmission).
- Synchronizer components worn out (Chapter Transmission) *.
Jumping transmission
- Worn or damaged shift rod (Chapter Transmission).
- Synchronizer components worn out (Chapter Transmission) *.
- Gear shift forks worn out (Chapter Transmission) *.
Vibration
- Lack of oil (Chapter Maintenance).
- Worn bearings (Chapter Transmission) *.
Lubricant leaks
- Leakage of stuffing box (Chapter Transmission).
- Leakage of body joints (Chapter Transmission) *.
* It is not possible to solve these problems yourself, but the above information will help you to identify the cause of the problem.
6. Automatic transmission
Note. Due to the complexity of the automatic transmission device, the diagnosis and repair of this unit should be entrusted to a specialist. In case of malfunctions other than those described below, the car should be sent to a service station or an automatic transmission repair specialist. Do not rush to remove the transmission until you determine the cause of the malfunction, since most checks are performed on the unit installed in the car.
Leakage
Transmission fluid is usually dark. In case of leaks, this fluid should not be confused with engine oil, which can easily get into the transmission due to the air flow.
To determine the source of the leak, first clean the transmission housing and surrounding surfaces of dirt and grime with chemical cleaners or steam. Let the engine and transmission run (when driving at low speed), then the air flow will be weak and the oil spread will be close to the source of the leak. Locate the leak from underneath the car. The most common leaks are in the following places:
- a) Oil pan (Chapter Maintenance and Transmission).
- b) Oil dipstick tube (Chapter Maintenance and Transmission.
- With) Mounting points/tubes of the transmission cooling system (Chapter Transmission).
Transmission fluid is brown or smells like burning
- Low transmission fluid level or fluid needs to be replaced (Chapter Maintenance and Transmission).
General gear selection problems
IN Chapter 8 Describes checking and adjusting the shift cable on automatic transmissions. The following are common problems that may be due to improper cable adjustment:
- a) The engine starts in gears other than "N" (neutral) or "R" (parking).
- b) The indicator on the gear selector lever indicates a gear other than the one actually engaged.
- With) The car is moving towards "neutral" or "parking lot".
- d) Difficult shifting or errors when changing gear.
Talk to Chapter 8 for the shift cable adjustment procedure.
Transmission does not shift down (mode "Kickdown") with the accelerator pedal fully depressed
- Low transmission fluid (Chapter Maintenance and Transmission).
- Incorrect shift cable adjustment (Chapter Transmission).
- The engine does not start in any gear, or starts in a gear other than "neutral" or "parking"
- Starter interlock switch incorrectly adjusted (Chapter Transmission).
- Incorrect shift cable adjustment (Chapter Transmission).
Transmission slips, shifts late, makes noise, or does not move vehicle in forward or reverse gears
There are many likely causes for the above problems, but you should limit yourself to only adjusting the fluid level. Before handing over the car to a service station or a transmission repair specialist, check the fluid level and its condition as described in Chapter Maintenance, or Transmission. Correct the fluid level or replace it and its filter. If the problem persists, professional help is needed.
7. Drive shafts
Clicking or knocking when cornering (at slow speed)
- Lack of CV joint lubrication, possibly due to damage to the protective cover (Chapter Drive shafts).
- Worn outer CV joint (Chapter Drive shafts).
Vibration when accelerating or braking (engine)
- Worn inner CV joint (Chapter Drive shafts).
- Bent or deformed drive shaft (Chapter Drive shafts).
- Right drive shaft intermediate bearing worn - where applicable (Chapter Drive shafts).
8. Brake system
Comment. Before troubleshooting the brake system, make sure the tires are in good condition and properly inflated, that the front camber/toe is properly adjusted, and that the vehicle is loaded correctly. In case of any malfunctions in the anti-lock brake system, it is allowed to check the condition of all joints of pipes and hoses, in other cases, contact a Renault service station for diagnostics.
Vehicle pulls to one side when braking
- Worn or dirty front and/or rear brake pads on respective side (Chapters Maintenance and Brake system).
- Brake pads with different lining materials are installed on different sides (Chapter Brake system).
- Loose brake caliper or rear brake support plate bolts (Chapter Brake system).
- Worn or damaged steering or suspension components (Chapter Suspension and steering).
Noise (or screech) when braking
- Brake lining friction material worn down to metal base (Chapters Maintenance and Brake system).
- Corrosion of the brake disc - may appear after a long parking of the car (Chapters Maintenance and Brake system).
Excessive brake pedal travel
- Faulty rear drum brake adjuster (Chapter Brake system).
- Faulty master cylinder (Chapter Brake system).
- Air in the brake system (Chapter Brake system).
- Faulty vacuum booster unit (Chapter Brake system).
- Faulty vacuum pump - diesel models (Chapter Brake system).
Brake pedal spring when pressed
- Air in the brake hydraulic system (Chapter Brake system).
- Damaged rubber brake hoses (Chapters Maintenance and Brake system).
- Loose brake master cylinder (Chapter Brake system).
- Faulty master cylinder (Chapter Brake system).
Excessive force on the brake pedal is required to stop the vehicle
- Faulty vacuum booster unit (Chapter Brake system).
- Disconnected, damaged or leaking brake booster vacuum hose (Chapters Maintenance and Brake system).
- Faulty vacuum pump - diesel models (Chapter Brake system).
- Damaged one of the circuits of the brake hydraulic system (Chapter Brake system).
- Jamming the piston of the brake caliper or working brake cylinder (Chapter Brake system).
- Wrong brake pads installed (Chapter Brake system).
- Oiled brake pads (Chapter Brake system).
When braking, intense vibration of the brake pedal or steering wheel is felt
- Severe wear or deformation of the brake disc (ov) (Chapter Brake system).
- Worn brake pads (Chapters Maintenance and Brake system).
- The mounting bolts of the brake caliper or rear brake shield are loose.
- Worn suspension or steering components or their mountings (Chapter Suspension and steering).
Pedal pulsates when braking hard
- A normal feature of the ABS system is that there is no malfunction.
Wheel braking
- Stuck brake caliper piston or working brake cylinder piston (Chapter Brake system).
- Incorrectly adjusted handbrake mechanism or linkage (Chapter Brake system).
- Faulty master cylinder (Chapter Brake system).
Rear wheel lock under normal braking
- Stuck brake caliper piston or working brake cylinder piston (Chapter Brake system).
- Faulty brake pressure regulator (Chapter Brake system).
9. Steering and suspension
Note. Before troubleshooting the suspension or steering, check that "malfunction" not caused by uneven tire pressure, different tire sizes, or brake failure.
Car pulls to the side
- Unequal tire wear (Chapter Maintenance).
- Excessive wear on suspension or steering components (Chapter Suspension and steering).
- Front wheel camber/toe-in incorrectly adjusted (Chapter Suspension and steering).
- Damage to suspension or steering components (Chapter Suspension and steering).
Wheel wobble and vibration
- Front wheel imbalance (vibration felt in the steering wheel) (Chapter Suspension and steering).
- Rear wheel imbalance (vibration is felt in the body) (Chapter Suspension and steering).
- Deformed or damaged wheel rims (Chapter Suspension and steering).
- Tire damaged (Chapter Schedule of ongoing maintenance).
- Worn parts, bushings or pivots of the suspension or steering gear (Chapter Suspension and steering).
- Loose wheel bolts (Chapter Suspension and steering).
Excessive rocking and/or crepe when cornering or braking
- Defective shock absorbers (Chapter Suspension and steering).
- Broken or worn coil spring and/or suspension part (Chapter Suspension and steering).
- Worn or damaged anti-roll bar or its mountings (Chapter Suspension and steering).
Wandering or inability to move in a straight line
- Front camber/toe misaligned (Chapter Suspension and steering).
- Worn parts, bushings or pivots of the suspension or steering gear (Chapter Suspension and steering).
- Wheel imbalance (Chapter Suspension and steering).
- Tire damaged (Schedule of ongoing maintenance).
- Loose wheel bolts (Chapter Suspension and steering).
- Defective shock absorbers (Chapter Suspension and steering).
Difficulty turning the steering wheel
- Lack of lubrication in the steering gear (Chapter Suspension and steering).
- Jamming of the ball joint of the tie rod end or the ball joint of the suspension (Chapter Suspension and steering).
- Auxiliary drive belt damaged or incorrectly adjusted (Chapter Maintenance).
- Front wheel camber/toe-in incorrectly adjusted (Chapter Suspension and steering).
- Bent or damaged steering rack or steering column (Chapter Suspension and steering).
Excessive steering play
- Steering column universal joint worn out (Chapter Suspension and steering).
- Steering tie rod end ball joints worn (Chapters Maintenance and Suspension and steering).
- Worn rack and pinion mechanism (Chapter Suspension and steering).
- Worn parts, bushings or pivots of the suspension or steering gear (Chapters Maintenance and Suspension and steering).
Lack of amplifier power
- Auxiliary drive belt damaged or incorrectly adjusted (Chapter Maintenance).
- Incorrect fluid level in the power steering hydraulic system (Schedule of ongoing maintenance).
- Power steering hydraulic hoses kinked (Chapter Suspension and steering).
- Faulty power steering pump (Chapter Suspension and steering).
- Defective rack and pinion steering (Chapter Suspension and steering).
Excessive tire wear
- Tires are worn on the inside or outside edges
- Low tire pressure (wear on both tires) (Chapter Schedule of ongoing maintenance).
- Incorrect front camber or caster angle (wear on only one edge) (Chapter Suspension and steering).
- Worn parts, bushings or pivots of the suspension or steering gear (Chapters Maintenance and Suspension and steering).
- Excessively tight cornering.
Tire treads have frayed edges
- Incorrect camber/toe angle setting (Chapter Suspension and steering).
Tires worn in the center of the tread
- Tires are inflated (Chapter Schedule of ongoing maintenance).
Tires worn unevenly
- Tires out of balance (Schedule of ongoing maintenance).
- Severe wear of the rim or bearings (Chapter Maintenance).
- Worn shock absorbers (Chapters Maintenance and Suspension and steering).
- Defective tire (Chapter Schedule of ongoing maintenance).
10. Electrical system
Note. For problems related to the starting system, see the faults listed earlier for the engine.
The battery does not hold a charge (just a few days)
- Internal battery damage (Chapter Engine electrical equipment).
- Low electrolyte level in the battery (Chapter Schedule of ongoing maintenance).
- Loose or oxidized battery terminal connections (Chapter Schedule of ongoing maintenance).
- Worn or incorrectly adjusted auxiliary drive belt (Chapter Maintenance).
- The alternator is working, but the charge circuit is faulty (Chapter Engine electrical equipment).
- Faulty alternator or voltage regulator (Chapter Engine electrical equipment).
- An internal short circuit causes the battery electrolyte to constantly boil away (Chapters Engine electrical equipment and Onboard electrical equipment).
Ignition/Charge warning light illuminates when engine is running
- Damaged, worn, or improperly adjusted auxiliary drive belt (Chapter Maintenance).
- Worn, oily or stuck in alternator brush guides (Chapter Engine electrical equipment).
- Worn or damaged alternator brush springs (Chapter Engine electrical equipment).
- Internal damage to the windings of the generator or voltage regulator (Chapter Engine electrical equipment).
- Broken, disconnected, or loose charge circuit wiring (Chapter Engine electrical equipment).
Ignition/Charge Warning Light Does Not Illuminate
- Control lamp burnt out (Chapter Onboard electrical equipment).
- Broken, disconnected or loose wiring in the control lamp circuit (Chapter Onboard electrical equipment).
- Faulty generator (Chapter Engine electrical equipment).
The lamp of system of external or internal illumination does not burn
- Bulb burnt out (Chapter Onboard electrical equipment).
- Oxidized lamp or holder contacts (Chapter Onboard electrical equipment).
- Blown fuse (Chapter Onboard electrical equipment).
- Faulty relay (Chapter Onboard electrical equipment).
- Broken, disconnected or loose electrical wiring (Chapter Onboard electrical equipment).
- Faulty switch (Chapter Onboard electrical equipment).
Inaccurate or erroneous meter readings
The readings of the device increase with increasing engine speed
- Faulty voltage regulator (Chapter Onboard electrical equipment).
Fuel or temperature gauges not showing
- Faulty pointer sensor (Chapters Cooling, heating systems and Power systems, release).
- Open wiring circuit (Chapter Onboard electrical equipment).
- Device defective (Chapter Onboard electrical equipment).
Fuel gauges or temperature gauges constantly give maximum readings
- Faulty pointer sensor (Chapters Cooling, heating systems and Power systems, release).
- Short circuit in the wiring circuit (Chapter Onboard electrical equipment).
- Faulty horn (Chapter Onboard electrical equipment).
The horn emits an intermittent or not loud sound
- Loose wiring connections (Chapter Onboard electrical equipment).
- Loose sound horn (Chapter Onboard electrical equipment).
- Faulty horn (Chapter Onboard electrical equipment).
Windshield wipers do not work or work unsatisfactorily
Windshield wipers not working or very slow
- Strong pressure of the wiper blades against the glass or increased friction in the plain bearings in the drive units (Chapter Onboard electrical equipment).
- Blown fuse (Chapter Onboard electrical equipment).
- Damaged contacts or wires (Chapter Onboard electrical equipment).
- Faulty relay (Chapter Onboard electrical equipment).
- Faulty wiper motor (Chapter Onboard electrical equipment).
Too large or too small sweep of the wiper blades on the glass
- Wiper arms incorrectly placed on axle (Chapter Onboard electrical equipment).
- Excessive wiper rod wear (Chapter Onboard electrical equipment).
- Loose or loose wiper drive or motor (Chapter Onboard electrical equipment).
Wiper blades don't clean the glass well
- Worn or damaged rubber parts of the brushes (Schedule of ongoing maintenance).
- Defective wiper arm springs or insufficient downforce (Chapter Onboard electrical equipment).
- Low concentration of detergent in the windshield washer to remove dirt (Schedule of ongoing maintenance).
Washers do not work or work unsatisfactorily
One or more washer nozzles not working
- Washer nozzle clogged (Chapter Onboard electrical equipment).
- Disconnected, kinked or kinked hose (Chapter Onboard electrical equipment).
- Insufficient amount of fluid in the washer reservoir (Schedule of ongoing maintenance).
Washer pump not working
- Broken or disconnected wiring or connections (Chapter Onboard electrical equipment).
- Blown fuse (Chapter Onboard electrical equipment).
- Washer switch defective (Chapter Onboard electrical equipment).
- Washer pump defective (Chapter Onboard electrical equipment).
Liquid is supplied from the washer nozzles with a delay
- Defective non-return valve in the fluid supply hose (Chapter Onboard electrical equipment).
Power windows do not work or work unsatisfactorily
Window glass only moves in one direction
- Faulty switch (Chapter Onboard electrical equipment).
Glass moves slowly
- Actuator stuck or not enough lubrication (Chapter Body).
- Internal parts or door trim interfere with the drive (Chapter Body).
- Faulty motor (Chapter Body).
Glass does not move
- Blown fuse (Chapter Onboard electrical equipment).
- Faulty relay (Chapter Onboard electrical equipment).
- Broken or disconnected wiring or connections (Chapter Onboard electrical equipment).
- Faulty motor (Chapter Onboard electrical equipment).
The single lock system does not work or does not work satisfactorily
Complete system failure
- Blown fuse (Chapter Onboard electrical equipment).
- Faulty relay (Chapter Onboard electrical equipment).
- Broken or disconnected wiring or connections (Chapter Onboard electrical equipment).
The lock locks but does not open or opens but does not lock
- Faulty switch (Chapter Onboard electrical equipment).
- Broken or disconnected drive levers or rods (Chapter Body).
- Faulty relay (Chapter Onboard electrical equipment).
One electric lock does not work
- Broken or disconnected wiring or connections (Chapter Onboard electrical equipment).
- Faulty motor (Chapter Body).
- Broken or disconnected drive levers or rods (Chapter Body).
- Faulty door lock (Chapter Body).