1. Insufficiently tightened or oxidized terminals on the terminals of the battery (see "Battery - Maintenance").
2. The battery is low or defective (see "Battery - service").
3. Faulty starter circuit (see "Starter").
4. Faulty starter drive parts (see "Starter - repair").
5. Defective starter relay (see "Starter - repair").
6. Faulty motor (anchor, windings, brush assembly) starter (see "Starter - repair").
7. Faulty switch (lock) ignition (see "Switch (lock) ignition - check").
8. Damaged or worn flywheel ring gear (see "Flywheel - removal and installation").
2. The crankshaft rotates, but the engine does not start
1. No fuel in the tank (pour fuel into the tank).
2. The crankshaft does not turn fast enough to start the engine due to a low battery charge (see "Battery - service").
3. Insufficiently tightened or oxidized terminals on the terminals of the battery (see "Battery - service").
4. Leakage of parts of the power system, faulty fuel module or fuel pressure regulator (see "Supply system").
5. Broken timing belt (see "Timing belt - checking the condition and adjusting the tension").
6. Faulty engine management system (see "Engine management system").
7. Faulty coil circuit (module) ignition (see "Engine Ignition Module 2112 (1,5i 16V) - check and replacement", or "Engine ignition coils 21124 (1,6i 16V) - check and replacement", or "Module (coil) ignition engines 2111 and 21114 (8V) - check and replacement").
8. Faulty crankshaft position sensor or its electrical circuit (see "Crankshaft Position Sensor - Check and Replace").
3. Difficulty starting a cold engine
1. The battery is discharged or the electrolyte level is insufficient (see "Battery - service").
2. Faulty power system (see "Supply system").
3. Defective coolant temperature sensor of the engine management system (see "Coolant temperature sensor - check and replace").
4. Leaky fuel injectors (see "Injectors - check").
5. Faulty engine management system (see "Engine management system").
4. Difficulty starting a warm engine
1. Clogged air filter (see "Air filter - filter element replacement").
2. Faulty power system (see "Supply system").
3. Insufficiently tightened or oxidized terminals on the terminals of the battery, poor contact in the connection between the battery and "weight" (see "Battery - service").
4. Defective coolant temperature sensor of the engine management system (see "Coolant temperature sensor - check and replace").
5. The starter makes a lot of noise (grinding)
1. Damaged or worn flywheel ring gear (see "Flywheel - removal and installation").
2. The tightening of the starter mounting bolts has loosened (see "Starter - removal and installation").
6. Engine starts but stops immediately
1. Loose or damaged coil electrical connections (module) ignition (see "Engine Ignition Module 2112 (1,5i 16V) - check and replacement", or "Engine ignition coils 21124 (1,6i 16V) - check and replacement", or "Module (coil) ignition engines 2111 and 21114 (8V) - check and replacement").
2. Insufficient pressure in the engine power system (see "Fuel Rail - Operating Pressure Check").
3. Leaky connections of parts of the inlet pipeline (see "Supply system").
4. Faulty engine management system (see "Engine management system").
7. Oil spots appear under the engine
1. Leaky oil pan gasket or loose drain plug (see "Engine oil pan - removal and installation, gasket replacement").
2. The seal of the sensor of the control lamp of emergency oil pressure is broken (see "Emergency oil pressure sensor in the engine - replacement").
3. Leaky seal of the cylinder head cover (see "Cylinder head cover for 2112 and 21124 engines (16V) - removal and installation" or "Cylinder head cover for 2111 and 21114 engines (8V) - removal and installation, gasket replacement").
4. Worn or damaged crankshaft seals (see "Front crankshaft oil seal - replacement" And "Rear crankshaft oil seal - replacement").
8. Engine idling speed either decreases or increases
1. Leaky vacuum hose connections (check the tightness of the fit on the fittings).
2. Clogged air filter (see "Air filter - filter element replacement").
3. Insufficient fuel pressure in the engine power system (see "Fuel Rail - Operating Pressure Check").
4. Damaged cylinder head gasket (see "Cylinder head for 2112 and 21124 engines (16V) - removal and installation" or "Cylinder head for 2111 and 21114 engines (8V) - removal and installation").
5. Wear on the timing belt and/or idler pulley (see "Timing belt - checking the condition and adjusting the tension").
6. Camshaft lobes wear (see "Camshafts for 2112 and 21124 engines (16V) - removal and installation", or "Camshaft for 2111 and 21114 engines (8V) - removal and installation").
9. Misfire at idle
1. Faulty spark plugs or electrode gap set incorrectly (see "Spark plugs for engines 2112 and 21124 (16V) - replacement" or "Spark plugs for 2111 and 21114 engines (8V) - replacement").
2. Faulty high voltage wires (see "High voltage motor wires 2112 (1,5i 16v) - check and replacement", or "High voltage wires for motors 2111 and 21114 (8v) - check and replacement").
3. Leaky vacuum hose connections (check the tightness of the fit on the fittings).
4. Faulty coil (module) ignition (see "Engine Ignition Module 2112 (1,5i 16v) - check and replacement", or "Engine ignition coils 21124 (1,6i 16v) - check and replacement", or "Module (coil) ignition engines 2111 and 21114 (8v) - check and replacement").
5. Insufficient compression in the engine cylinders (see "Checking compression in the engine cylinders").
6. Faulty fuel injectors (see "Injectors - check").
10. Misfire when engine is running under load (while driving)
1. Clogged fuel filter and / or pipelines of the engine power system (see "Supply system").
2. Faulty fuel injectors (see "Injectors - check").
3. Spark plugs are faulty or the gap between the electrodes is incorrectly set (see "Spark plugs for engines 2112 and 21124 (16v) - replacement" or "Spark plugs for 2111 and 21114 engines (8v) - replacement").
4. Damaged insulation of high-voltage wires (see "High voltage motor wires 2112 (1,5i 16v) - check and replacement" or "High voltage wires for motors 2111 and 21114 (8v) - check and replacement").
5. Faulty engine management system (see "Engine management system").
6. Insufficient compression in the engine cylinders (see "Checking compression in the engine cylinders").
7. Leakage (burnout) gas distribution valves (see "Cylinder head - check").
8. Faulty ignition system (see "Engine management system").
9. Leaky vacuum hose connections (check the tightness of the fit on the fittings).
11. The engine does not develop full power
1. Camshaft lobes wear (see "Camshafts for 2112 and 21124 engines (16v) - removal and installation", or "Camshaft for 2111 and 21114 engines (8v) - removal and installation").
2. Leakage (burnout) gas distribution valves (see "Cylinder head - check").
3. Incorrect installation of valve timing (see "Timing belt - replacement").
4. Faulty ignition system (see "Engine management system").
5. Faulty engine power system (see "Supply system").
6. Clogged air filter (see "Air filter - filter element replacement").
7. Wedging of working cylinders of brake mechanisms (see "Brake system - check of technical condition").
8. Clutch slips (see "Clutch - checking the technical condition").
9. Clogged fuel filter and / or pipelines of the engine power system (see "Supply system").
10. Faulty engine management system (see "Engine management system").
11. Insufficient compression in the engine cylinders (see "Checking compression in the engine cylinders").
12. Faulty exhaust system (see "Exhaust system").
12. When the engine is running, the emergency oil pressure warning lamp lights up
1. Insufficient oil level (see "Lubrication system - oil level check").
2. Idle speed below normal (see "Engine management system").
3. Short circuit "sensor - control lamp" (see wiring diagrams).
4. The sensor of a control lamp of emergency oil pressure is faulty (see "Emergency oil pressure sensor in the engine - replacement").
5. Worn crankshaft and/or oil pump main bearings (see "Engine cylinder block - check of technical condition, removal and installation", And "Oil pump - removal, disassembly, assembly and installation").
13. Pre-ignition (the engine continues to run for a while after the ignition is turned off)
1. High idle (see "Engine management system").
2. Engine overheating (see "Cooling system - check of technical condition").
3. Carbon deposits on valves and in combustion chambers (see "Cylinder head - check").
14. Increased fuel consumption
1. Clogged air filter (see "Air filter - filter element replacement").
2. Faulty engine management system (see "Engine management system").
3. Faulty fuel injectors (see "Injectors - check").
4. Insufficient tire pressure (see "Tires - pressure check").
15. Fuel leaks and/or smell of gasoline
1. Leakage in fuel lines (see "Supply system").
2. Fuel tank full (remove excess fuel).
3. Leakage of fuel injectors (see "Injectors - check").
16. Engine overheating
1. Insufficient coolant level in the cooling system (see "Cooling system - check of technical condition").
2. Malfunction of the coolant pump (see "Coolant pump - replacement").
3. The radiator of the engine cooling system is clogged (see "Cooling system radiator - removal and installation").
4. Faulty thermostat (see "Thermostat - check without removal").
5. Faulty electric fan of the engine cooling system (see "Electric fan - removal, disassembly and installation").
6. Faulty valves in the cap of the expansion tank (replace cap).
17. Battery not charging
1. Worn or insufficiently tensioned alternator drive belt (see "Alternator drive belt - condition check and tension adjustment").
2. Low electrolyte level in the battery (see "Battery - service").
3. Insufficiently tightened or oxidized terminals on the terminals of the battery (see "Battery - service").
4. Faulty generator (see "Generator - check without removal from the car").
5. Faulty battery charging circuit (see wiring diagrams).
6. Short circuit in one of the circuits of electrical equipment (see wiring diagrams).
7. Faulty battery (see "Battery - removal and installation").
18. The battery warning lamp does not go out after starting the engine
1. Faulty generator (see "Generator - check without removal from the car").
2. Faulty battery charging circuit (see wiring diagrams).
3. Worn or insufficiently tensioned alternator drive belt (see "Alternator drive belt - condition check and tension adjustment").
4. Faulty voltage regulator (see "Voltage regulator and capacitor - check and replacement").
19. The battery charge warning lamp does not light up when the ignition is turned on
1. Pilot lamp burnt out (see "Instrument panel - lamp replacement").
2. Faulty electrical circuit of the excitation winding of the generator (see "Generator").
20. Clutch slips (engine speed increases, but the car does not accelerate)
1. Oil ingress on the working surfaces of the driven disk (see "Clutch - checking the technical condition").
2. Strong wear, warping and burning of the lining of the driven disk (see "Clutch - checking the technical condition").
21. Difficult or impossible gear shifting
1. The adjustment of the gear shift drive is broken (see "Gearshift drive - removal, installation and adjustment").
2. The tightening of the nuts securing the gear lever support has loosened (see "Gearshift drive - removal, installation and adjustment").
3. The gearshift drive rod is deformed (see "Gearshift drive - removal, installation and adjustment").
4. Breakage or wear of the plastic parts of the shift mechanism (see "Gearshift drive - removal, installation and adjustment").
22. Knock (clicks) when turning the car at low speed
1. Wear of external constant velocity joints (see "Front wheel drives - check of technical condition").
2. Loose front suspension fasteners (see "Front suspension - check of technical condition").
3. Loose steering hardware (see "Steering - check of technical condition").
4. Failure of differential parts (see "Gearbox - check of technical condition").
23. Vibration when driving at high speed (over 90 km/h)
1. The balance of the front wheels of the car is broken (see "Hubs, wheels and tires - checking the technical condition").
2. The geometry of the tires or wheel rims is broken due to deformation (see "Hubs, wheels and tires - checking the technical condition").
3. Wear of the hinges of equal angular speeds of the front wheel drives (see "Front wheel drives - check of technical condition").
24. Driving the car away from straight ahead
1. Different pressure in the tires of the front wheels (see "Tires - pressure check").
2. Different degree of wear of the tires of the front wheels (see "Hubs, wheels and tires - checking the technical condition").
3. Breakage of one of the front suspension springs (see "Front suspension - check of technical condition").
4. The adjustment of the angles of installation of the front wheels is broken (see "Front wheel alignment - check").
5. Braking one of the wheels of the car (see "Brake system - check of technical condition").
25. Car pull when braking
1. Different pressure in the tires of the front wheels (see "Tires - pressure check").
2. One of the brake mechanisms is faulty (see "Brake system - check of technical condition").
3. Pinched hose or pipeline of one of the brake mechanisms (see "Brake system - check of technical condition").
4. Different degree of wear of parts of the brake mechanisms of one of the axles of the car (see "Brake system - check of technical condition").
26. Uneven tire wear
1. Violated wheel alignment (see "Front wheel alignment - check").
2. Malfunction of suspension springs (see "Front suspension - check of technical condition" And "Rear suspension - check of technical condition").
3. One or more wheels out of balance (see "Hubs, wheels and tires - checking the technical condition").
4. The vehicle is overloaded or unevenly loaded (unload the car).
27. Excessive steering play
1. Wheel bearing wear (see "Hubs, wheels and tires - checking the technical condition").
2. Failure of the tie rod ends (see "Steering - check of technical condition").
3. Play in the steering mechanism (see "Steering - check of technical condition").
28. Individual headlights or taillights do not turn on
1. Bulb filament burnt out (see "Outdoor lighting, light and sound alarm").
2. The contact of the lamp in the cartridge is oxidized (see "Outdoor lighting, light and sound alarm").
3. Damaged wires or oxidized tips in their connections (see wiring diagrams).
29. Individual headlight or taillight bulbs burn at full dimmer
1. Poor contact or damage to the wire connecting the lamp (flashlight) With "weight" (see "Outdoor lighting, light and sound alarm").
2. Dimming the lamp bulb (see "Outdoor lighting, light and sound alarm").
30. Car door won't unlock
1. Frozen water in the lock cylinder (winter) (see "Body maintenance").
2. The lock cylinder is dirty (see "Body maintenance").
3. The cylinder mechanism of the lock is damaged (see "Switch (larva) front door lock - removal and installation", And "Switch (larva) tailgate lock - removal and installation").
31. Water enters the cabin
1. Loose or damaged door seal (fix or replace seal).
2. The position of the door in the opening of the body is not adjusted (see "Front door - removal and installation", "Rear door - removal and installation", And "Tailgate - removal and installation").
32. Knocking doors when driving a car
1. Wear on the fingers in the door hinges (see "Front door - removal and installation", "Rear door - removal and installation", And "Tailgate - removal and installation").
2. Door lock screws not tightened (see "Front door lock - removal, installation and adjustment", "Rear door lock - removal, installation and adjustment", And "Tailgate lock - removal and installation").
33. The door lock does not lock
Jamming of the moving parts of the lock due to dirt or lack of lubrication (see "Body maintenance").
34. The hood lock does not unlock
1. Break of draft of a drive of the lock (see "Hood lock drive link - lubrication and replacement").
2. The adjustment of the length of the rod is broken (see "Hood lock drive link - lubrication and replacement").
35. Tailgate won't hold open
One or both gas stops defective (see "Gas stops of the tailgate - removal and installation").