Transmission Problem: Fifth gear pops out...

[jevijavi]

Hello guys. I have a s52 engine with speed transmission. Maybe you someone here has experienced the same problem and knows a solution. While driving after shifting into 5th, I let go of the gas a bit and 5th gear pops out. What could be the problem here? thanks in advance for those of you willing to help...

[sharky]

very common problem with ZF boxes, they are cheap enough, just swap it out for a good one.

[jevijavi]

reallly? damn, that sucks....

[Gooch]

Sounds like it's time to do your shift pins and detents:

http://webspace.ringling.edu/~dplassma/bmw_diy/shift_pins/shift_pins.html

I just did mine while I had my ZF out of the car; very straightforward and the repair kits are cheap.

[jevijavi]

where can i find a repair kit, pelican parts?

[JrCamacho]

I don't know BMW transmissions, but i know Toyota ones! Check the syncros too!, they can cause these "pop-outs" in gear.

[e30rapidic]

Detent pin. May as well do both at the same time. I did, ordered from Bluntipoo. About a $30 fix....much cheaper than replacing trans....

23 11 7 542 726 Repair Kit X2 (Contains 1 bushing, 1 seal cap, 1 lock ring)
23 31 1 224 849 Locking Pin X1 (Detent Pin, Reverse)
23 31 7 502 165 Locking Pin X1 (Detent Pin, 5th gear)

[White325is]

Where did it say he had a ZF trans?

[Mr.SWISS]

Where did it say he had a ZF trans?

Assumed since he's using an S52 and that's what comes mated to one.

[E30Strube]

I have the tools used to fix the detents and the pins. I would be willing to work out sending them for rental fee. I just replaced the same parts on my 5 speed because of the same problem.

[jevijavi]

Thanks guys. Yes it is a ZF. Im going to try with the repair kit. Ill let u Know on the repair tools...

[e30_325es]

How hard is it with the trans in the car?

[e30rapidic]

How hard is it with the trans in the car?

next to fucking impossible. I did it but never again. It would less hassle to drop the subframe and do it that way.

[Mr.SWISS]

next to fucking impossible. I did it but never again. It would less hassle to drop the subframe and do it that way.

On a ZF it is impossible. You don't have a fingers width between the tunnel and the trans.

[e30rapidic]

On a ZF it is impossible. You don't have a fingers width between the tunnel and the trans.

Like I said above. Not hearsay, I did it...

http://www.r3vlimited.com/board/showpost.php?p=2772119&postcount=10