W212 mixed gear without errors
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W209
W212 mixed gear without errors
I'm trying to fix a problem in w212 om642 with 7g.
the problem mainly occurs after warming up or running longer than reaching full temperature.
After braking, the car starts to shift into Park. but initially you can change gear and keep going.
FInally, after braking, the car puts the car into park and any attempt to change to D or R immediately puts it back into park.
There are no errors in the car. drive select in MRM (steering wheel module) looks normal.
the problem mainly occurs after warming up or running longer than reaching full temperature.
After braking, the car starts to shift into Park. but initially you can change gear and keep going.
FInally, after braking, the car puts the car into park and any attempt to change to D or R immediately puts it back into park.
There are no errors in the car. drive select in MRM (steering wheel module) looks normal.
Thread Starter
Newbie
Joined: Feb 2024
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W209
I will check this solution in the morning, it seems to make sense. I will see the actual values in ezs.
https://static.nhtsa.gov/odi/tsbs/20...67015-9999.pdf
https://static.nhtsa.gov/odi/tsbs/20...67015-9999.pdf
Out Of Control!!
Joined: Apr 2019
Posts: 11,823
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Did you read the EZS status of your key??
This module has multiple issues including
it use unprotected optical sensors sensitive to dust
it uses marginal solderless pins connections.
This module has multiple issues including
it use unprotected optical sensors sensitive to dust
it uses marginal solderless pins connections.
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W209
yes, this is a good clue, when the problem occurred, I have an unrecognized valid key in box 297 in ezs. I think this topic will be useful to others.
Unfortunately, I don't know which elements in ezs are damaged.
Out Of Control!!
Joined: Apr 2019
Posts: 11,823
Likes: 6,708
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
EZS
Is this a "keyless ignition" or is your key inserted in the ignition switch ??
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the key is physically in the ignition. Unfortunately, I cannot buy EZS with matching numbers. I'm starting to wonder if I should take it apart and look for the cause.
Last edited by Sereq28; Feb 15, 2024 at 09:57 AM.
Thread Starter
Newbie
Joined: Feb 2024
Posts: 12
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W209
the key is physically in the ignition. Unfortunately, I cannot buy EZS with matching numbers. I'm starting to wonder if I should take it apart and look for the cause.
