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 MANUALSBMW2010M5 (E60) V10-5.0L (S85)REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONP CODE CHARTSP2526CONDITION FOR FAULT MEMORY ENTRY - 1
2010 BMW M5 (E60) V10-5.0L (S85)
Condition For Fault Memory Entry - 1
2010 BMW M5 (E60) V10-5.0L (S85)SECTION Condition For Fault Memory Entry - 1
2794 - P2526
Information saved in
DME
Fault code
2794 - P2526
Fault text
Brake servo booster vacuum sensor
Fault description
Condition for fault identification
Test condition:
B_ZUST_ML
Terminal condition: Engine running
Voltage condition:
none
Condition for fault memory entry
!( -K_MVAC_P_DIAG_PDIFF_SW
<= mvac_p_diag_pdiff
<= K_MVAC_P_DIAG_PDIFF_SW )
Action in service
1. Check electrical wiring
2. Use tester to read out sensor's measurement data
3. Inspect vacuum hoses
4. Check hose connections
5. Check non-return valves
6. Replace differential-pressure sensor
Fault effect and breakdown warning
Displayed engine rpm limit of 3500 rpm / power reduction /
MIL comes on after engine runs 2x
Driver information
Warning light:
No
Service instruction
none
Information saved in
DME
Fault code
2794 - P2526
Fault text
Brake servo booster vacuum sensor
Fault description
Condition for fault identification
Test condition:
B_ZUST_ML
Terminal condition: Engine running
Voltage condition:
none
Condition for fault memory entry
!( -K_MVAC_P_DIAG_PDIFF_SW
<= mvac_p_diag_pdiff
<= K_MVAC_P_DIAG_PDIFF_SW )
Action in service
1. Check electrical wiring
2. Use tester to read out sensor's measurement data
3. Inspect vacuum hoses
4. Check hose connections
5. Check non-return valves
6. Replace differential-pressure sensor
Fault effect and breakdown warning
Displayed engine rpm limit of 3500 rpm / power reduction /
MIL comes on after engine runs 2x
Driver information
Warning light:
No
Service instruction
none
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.