07 E320 BT: ESP Inoperative message
Pulled over, restarted, and went away. Picture taken to record date/time/mileage in case this needs to become a warranty issue.
2007 E320 Bluetec, 31k miles.
- Flashing ESP light as if the system was detecting slip or skid with associated sudden power reduction and/or braking (can't really tell which was happening)
- PRE-SAFE activated twice while this was happening (sudden tightening of the seatbelt)
- After a few seconds of this, the ESP Inoperative message came up again
Going to take it in tomorrow morning....and drive with the ESP OFF for the time being, seeing as how this drive-ability issue could become a safety issue. I'm somehow thinking it's the brake switch, and I was worried that my brake lights weren't working - but they do seem to be. As the car's under warranty, I'll leave it to the dealer.
- Flashing ESP light as if the system was detecting slip or skid with associated sudden power reduction and/or braking (can't really tell which was happening)
- PRE-SAFE activated twice while this was happening (sudden tightening of the seatbelt)
- After a few seconds of this, the ESP Inoperative message came up again
Going to take it in tomorrow morning....and drive with the ESP OFF for the time being, seeing as how this drive-ability issue could become a safety issue. I'm somehow thinking it's the brake switch, and I was worried that my brake lights weren't working - but they do seem to be. As the car's under warranty, I'll leave it to the dealer.
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- ELECTRICAL FAULT SHORT TEST REVEALED CODES: ABR 4BD5, 4B1A AND REAR SAM 9059
- PRINTED FREEZE FRAME DATA AND CONTROL UNIT LOG
- CHECKED CONNECTIONS AT CONNECTOR X62 F FUSE BOX...OK
- ACCESSED B24/15 SENSOR - CHECKED FOR ELEC PIN TIGHTNESS AND CORROSION..OK
- CHECKED CONTINUITY AND IMPEDANCE BETWEEN B24/15 AND X62...OK
- ENSURED B24/15 TIGHTENED TO FLOOR PROPERLY...OK
- REPLACED B24/15 SENSOR...NO FURTHER CODES AFTER ROAD TEST....OK
B24/15 = YAW RATE AND LATERAL ACCELERATION SENSOR-ESP p/n:216-542-00-18
Labour time total = 4.4 hours (straight and non time)
No pricing, because covered under warranty.
- ELECTRICAL FAULT SHORT TEST REVEALED CODES: ABR 4BD5, 4B1A AND REAR SAM 9059
- PRINTED FREEZE FRAME DATA AND CONTROL UNIT LOG
- CHECKED CONNECTIONS AT CONNECTOR X62 F FUSE BOX...OK
- ACCESSED B24/15 SENSOR - CHECKED FOR ELEC PIN TIGHTNESS AND CORROSION..OK
- CHECKED CONTINUITY AND IMPEDANCE BETWEEN B24/15 AND X62...OK
- ENSURED B24/15 TIGHTENED TO FLOOR PROPERLY...OK
- REPLACED B24/15 SENSOR...NO FURTHER CODES AFTER ROAD TEST....OK
B24/15 = YAW RATE AND LATERAL ACCELERATION SENSOR-ESP p/n:216-542-00-18
Labour time total = 4.4 hours (straight and non time)
No pricing, because covered under warranty.
Relatively common problem.



