Transmission malfunction

WALTER2017

MEMBER
2009 BMW 528
3.0L
6 CYL
2WD
AUTOMATIC
80,000 MILES

Cannot move gears. It is stuck in the parking gear.

Friday, October 27th, 2017 AT 6:29 AM

5 Replies

KHLOW2008

MECHANIC
41,814 POSTS

Hi Walter,

The shift interlock system has malfunctioned resulting in the gear shift being locked. Check if the brake lights are working. If not, it could be a blown fuse or a bad brake switch. Worse of the problem would be a faulty interlock solenoid/module.

K H Low

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Friday, October 27th, 2017 AT 7:16 AM

WALTER2017

MEMBER
3 POSTS
2009 BMW 525
2.0L
6 CYL
4WD
AUTOMATIC
85,000 MILES

This morning when I started the engine I saw a message of transmission malfunction may be resolved with restarting the car, but restarting it did not help. I cannot change gears, just to neutral. Any advice? Thank you

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Friday, October 27th, 2017 AT 2:44 PM (Merged)

MHPAUTOS

MECHANIC
31,937 POSTS

You need to first check oil level and see if your transmission will set codes. Post any codes here for further assistance.

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Friday, October 27th, 2017 AT 2:44 PM (Merged)

WALTER2017

MEMBER
3 POSTS

P2720 pressure control solenoid, control circuit low.

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Saturday, October 28th, 2017 AT 9:36 AM

KEN L

MASTER CERTIFIED MECHANIC
47,526 POSTS

There are several fuses and a hydraulic pump relay that can go out which will cause the problem you are describing.

Here are some guides that will help you get the job done:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below).

Please let us know what happens.

Cheers, Ken

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