BMW X5: Electronic Switching On Or Control Unit
BMW X5 (G05) 2019-2026 Service & Repair Manual / Engine Electrical System / Engine Electrical System (6-Cyl.) / Electronic Switching On Or Control Unit
- Replacing Crankshaft Pulse Generator (N52, N52K, N51, N53)
- Replacing Exhaust Camshaft Pulse Generator (N52, N52K, N51, N53)
- Removing/Replacing Knock Sensors (N52, N52K, N51)
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Replacing Crankshaft Pulse Generator (N52, N52K, N51, N53)
IMPORTANT: Read and comply with notes on protection against
electrostatic damage (ESD
protection).
IMPORTANT: Aluminum-magnesium materials.
No steel screws/bolts may be used due to the threat of ele
Replacing Exhaust Camshaft Pulse Generator (N52, N52K, N51, N53)
IMPORTANT: Read and comply with notes on protection against
electrostatic damage (ESD
protection).
Necessary preliminary tasks:
Read out fault memory of DME control unit; if necessary, work through
Removing/Replacing Knock Sensors (N52, N52K, N51)
IMPORTANT: Aluminum-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical
corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
Aluminum
SEE MORE:
Connecting Lines
NOTES ON FITTING A NEW PIPE OR A SCREW CONNECTION
IMPORTANT: Do not kink, twist or crush lines.
Do not disassemble screw connection!
Fitting new screw connection:
Insert complete new screw connection consisting of toothed ring (1), banjo
bolt (2) and assembly plug (3) into
air spring/pipe connecti
Valvetrain
The valvetrain on the N52 introduced in 2006, used 5 mm valve stems on both
the intake and exhaust. To
increase durability, the exhaust valve stems were increased to 6 mm from 6/06
production.
All of the new NG6 engine have adopted the 6 mm valve stem for the exhaust, the
intake stem remains at
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