2006 R350 shifts into park while driving
Thread Starter
Newbie
Joined: Dec 2023
Posts: 1
Likes: 1
2006 MB R350
2006 R350 shifts into park while driving
We recently purchased a 2006 MB R350 wagon as a runaround car. The previous owner told us that it had an issue will randomly shifting into park while driving. My wife and I have both experienced this now, where we are driving at normal city speeds (below 50 mph) and the car either shifts into park randomly and/or turns off while shifting into park. The previous owner advised that when they took the car into the dealership, the dealership wanted to charge them over $10k to replace the transmission which they felt was causing the problem. I have been searching a few forums and was thinking it could be some of the issues listed below, but I wanted to see if anyone dealt with a similar issue and how they fixed it.
1) Transmission Control Module
2) Alternator
3) Column shifter
4) Door sensor - as the vehicle automatically shift into park when a door is opened
5) Something else completely
1) Transmission Control Module
2) Alternator
3) Column shifter
4) Door sensor - as the vehicle automatically shift into park when a door is opened
5) Something else completely
Junior Member
Joined: Oct 2018
Posts: 60
Likes: 8
From: Dallas, TX
2006 R3504Matic, S430, BMW750E66, E350 207, PORSHCE 911C4S, BMW128 E88, VWTREG, 86 560SL, 88560SEL++
may need a couple transmission fluid and filter changes. There can be particles in the solenoid that can get the solenoids stuck.
They kit is not that expensive if you want to do a rebuild of the valve body.
There are many videos on how to do it.
Then you need to have the modules reset once done.
But at least start with having the Transmission fluid changed along with the filter, pan gasket and new aluminum bolts.
Kits are sold on FCP Euro
https://www.fcpeuro.com/products/mer...em-7229erlysk1
https://www.fcpeuro.com/products/mer...on-service-kit
https://www.fcpeuro.com/products/mer...oid-2402700089
Transtar sells the kits for solenoids in valve bodies
https://www.transtar1.com/TranstarIn...ndex.html#p=20
https://www.transtar1.com/TranstarIn...index.html#p=4
Depends on your transmission type. You can go to LastVin.com and find out, put in your VIN and it should show built.
They kit is not that expensive if you want to do a rebuild of the valve body.
There are many videos on how to do it.
Then you need to have the modules reset once done.
But at least start with having the Transmission fluid changed along with the filter, pan gasket and new aluminum bolts.
Kits are sold on FCP Euro
https://www.fcpeuro.com/products/mer...em-7229erlysk1
https://www.fcpeuro.com/products/mer...on-service-kit
https://www.fcpeuro.com/products/mer...oid-2402700089
Transtar sells the kits for solenoids in valve bodies
https://www.transtar1.com/TranstarIn...ndex.html#p=20
https://www.transtar1.com/TranstarIn...index.html#p=4
Depends on your transmission type. You can go to LastVin.com and find out, put in your VIN and it should show built.
Newbie
Joined: Jan 2024
Posts: 3
Likes: 0
From: North Carolina
2018 Metris Cargo
Hi MyTeeOak, any luck on this issue? My 2016 Metris van is going into park at low speeds and I feared it was possible at higher speeds. What the heck happens at 50mph? Does it slam to a stop? The dealer cannot replicate my issue and the van shows no codes etc. Thank you.
Junior Member
Joined: Oct 2018
Posts: 60
Likes: 8
From: Dallas, TX
2006 R3504Matic, S430, BMW750E66, E350 207, PORSHCE 911C4S, BMW128 E88, VWTREG, 86 560SL, 88560SEL++
Changing trans fluid and filter is a big deal. Some solenoids should be maintained, It isnt that expensive to get it done. Im pretty familiar with those this issue as my BMW and Mercedes will do this if you dont change your fluid often. Valve bodies and have dirt and debris it in and it can make those solenoids get stuck.
Newbie
Joined: Jan 2024
Posts: 3
Likes: 0
From: North Carolina
2018 Metris Cargo
Changing trans fluid and filter is a big deal. Some solenoids should be maintained, It isnt that expensive to get it done. Im pretty familiar with those this issue as my BMW and Mercedes will do this if you dont change your fluid often. Valve bodies and have dirt and debris it in and it can make those solenoids get stuck.
