BMW X5 Owners & Service Manuals

BMW X5: US National Version

Fuel tank leakage diagnosis module

The fuel system leak test is regularly conducted when the engine is switched off. Here, the following processes are executed during the DME run-down period:

If the result is positive, tank leakage diagnosis is started with a comparison measurement.

The fuel evaporation control valve remains closed. The switchover valve in the diagnosis module is switched to the "Diagnosis" position. The leakage diagnosis pump impels fresh air from the surrounding area into the tank, causing the interior pressure to slowly increase. At the start of tank leakage diagnosis, the interior pressure is equal to the ambient pressure. The current draw is therefore low. As the pressure inside the tank increases, the current draw also increases. The DME evaluates the current draw of the leakage diagnosis pump.

The relevant fault is entered in the DME fault memory. Tank leakage diagnosis is then ended.

Tank leakage diagnosis can also be started with the BMW diagnosis system. In this case, the processes run as described above.

Subject to change.

READ NEXT:

 Vacuum Supply All Models

Fig. 2: Identifying Air Brakes Vacuum Supply Models INTRODUCTION Vacuum is principally used for the brake booster. The vacuum in the inlet pipe depends on the varying engine load. Diesel engines do

 Engine - Technical Data

Engine - Technical Data (N52K 6-Cyl.) ENGINE, GENERAL ENGINE IN GENERAL N52K B25 TECHNICAL DATA - ENGINE GENERAL N52K B25 ENGINE IN GENERAL N52K B30 TECHNICAL DATA - ENGINE GENERAL N52K B30 ENGINE B

 Exhaust System (6-Cylinder)

SEE MORE:

 xOffroad package

Principle The xOffroad package supports the driver when driving away from unpaved roads or with reduced traction. The system offers four different xOffroad driving modes for selection. xOffroad driving modes and levels The xOffroad driving modes can be selected based on the ground conditions. When

 Air Conditioning Unit Disinfectants

A musty odor may be detected in the vehicle, particularly when the air conditioner is first switched on. This is caused by microorganisms growing on the evaporator from moisture condensation. A disinfectant can be applied to the air conditioning system: "Airguard" by J. J. Products, Inc.; "Airse

© 2019-2023 Copyright www.bmwx5info.com