Car Troubleshooting BMW 3 Series E46

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...

Engine Troubleshooting
Engine won't crank when trying to start Loose or corroded battery contacts (" Weekly check "). The battery is empty or defective ( chapter 5A ). Open,...

Troubleshooting the cooling system
Overheat Insufficient amount of coolant in the system (" Weekly check "). Thermostat failure ( chapter 3 ). Clogged radiator or grille ( chapter 3 )....

Troubleshooting power supply and exhaust systems
Increased fuel consumption Clogged air filter element ( Chapter 1 ). Injector failure ( chapter 4 ). Incorrect ignition timing / ignition system malfunction (...

Clutch Troubleshooting
When you press the pedal, it reaches the floor with no effort or with very little effort Low Fluid/Air in Clutch Hydraulic System ( chapter 6 ). Defective...

Troubleshooting a Manual Transmission
Noise in neutral position with engine running Wear of the bearings of the input shaft of the gearbox (the manifestation of noise when the clutch pedal is...

Troubleshooting Automatic Transmission
Note. Due to the complexity of the automatic transmission, it is beyond the power of the car owner to perform its inspection and maintenance. For...

Troubleshooting Differential and Cardan Shaft
Vibration when decelerating or accelerating Cardan joint wear ( chapter 8 ). Bending, deformation or imbalance of the cardan shaft. Noise in the main gear,...

Troubleshooting the brake system
Note. To verify that it is the braking system that is at fault, check that the tires are in good condition and properly inflated, that the front wheel...

Troubleshooting Suspension and Steering
Note. Before diagnosing suspension or steering problems, make sure that the tire pressures are correct, the tires are of the same type, and the brakes are...

Troubleshooting electrical equipment
Note. Faults associated with the starting system are listed under the heading "Engine" ( see above in this section ). Battery drains in a few days Internal...