R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

Tailgate Error 9402

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Old Feb 1, 2024 | 07:24 AM
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NielsW251's Avatar
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W251
Tailgate Error 9402

Hi all,

I have an issue with my easy pack tailgate. According Xentry/DAS the error is "9402 - Relais is not working". The part number of the tailgate modul is A164 820 48 26. I checked the two relais on the modul board, but they seem to be ok.

Does anybody faced this issue? Btw, I checked the cables at the hinge area as well as the sensor lines between body and the tailgate itself, they are ok. The tailgate works fine for opening and also if you close it manual the lock will be closed.

Best regards,
Niels
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Old Feb 2, 2024 | 12:02 PM
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R3504Matic's Avatar
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From: Dallas, TX
2006 R3504Matic, S430, BMW750E66, E350 207, PORSHCE 911C4S, BMW128 E88, VWTREG, 86 560SL, 88560SEL++
try to clear the codes on it and later drive and see if the codes come back when you scan.
Have you had any battery issues? Battery after 3yrs can start to not charge as well and trigger modules codes.
I change my battery every 3yrs about. AGM battery is good for maintaining but there are many modules in Rclass
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