Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2008M5 (E60) V10-5.0L (S85)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSDESCRIPTION AND OPERATIONBUS FUNCTIONSMOST SYSTEM ANALYSIS
2008 BMW M5 (E60) V10-5.0L (S85)
MOST System Analysis
2008 BMW M5 (E60) V10-5.0L (S85)SECTION MOST System Analysis
MOST system analysis
Functional description, see BMW Technology:
TIS -> Document -> SI Technology -> SBT Number 61 02 03 015
Brief description
The test program evaluates certain fault memories from all of the MOST control modules. If there are configuration problems, the target configuration is restored first.
The evaluation of the existing fault code memory entries then provides the most probable fault cause. The results are a maximum of the two most likely fault causes, for example:
- (* * * *) CDC CD changer
- (* *) TEL telephone
Assessment of the result quality:
- (* * * * *) => high quality
- (*) => low quality
The number of asterisks varies between one and five.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.