Car troubleshooting Mercedes 190 (W201)

Troubleshooting: Introduction
A car owner who adheres to standard service intervals will not need to use this section of the manual very often. The reliability of branded parts is such that if parts...

Engine malfunctions
Engine does not rotate when trying to start Battery contacts loose or oxidized (" Weekly check "). The battery is empty or defective ( Chapter 5A ). Violations in the...

Cooling system malfunctions
Overheat Insufficient amount of coolant in the system ( Weekly check ). Faulty thermostat ( Chapter 3 ). Clogged radiator or grille ( Chapter 3 ). Faulty electric...

Clutch malfunctions
The pedal falls to the floor with very little resistance Low fluid level or air in hydraulic clutch release system ( Chapter 6 ). Destroyed release bearing or clutch...

Manual Transmission Faults
Noise in neutral position with engine running Wear of the input shaft gears and gearbox bearings (noise when the clutch pedal is deafened, not pressed) ( Chapter 7A ).*...

Automatic transmission malfunctions
Note: Due to the complexity of the automatic transmission in a garage environment, it is not possible to perform a functional check or repair. For troubleshooting not...

Differential and cardan shaft malfunctions
Vibration when decelerating or accelerating Cardan joint wear ( Chapter 8 ). Bent, twisted or unbalanced propeller shaft ( Chapter 8 ). Low squeal that gets louder as...

Brake system malfunctions
Note: To be sure it is the braking system that is at fault, make sure the tires are in good condition and properly inflated, that the front wheel alignments are within...

Suspension and steering system problems
Note: Before diagnosing suspension or steering problems, make sure that the tire pressures are correct, the tires are the same type, and the brakes are working. Car...

Electrical system malfunctions
Note: Troubleshooting problems related to the launch system is described above - in the list titled " Engine " in this section. Battery drains in a few days Internal...