1987 325i cab - RTABs or not?

Need technical Q/A then you're in the right place

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mcbonio
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Post Tue Mar 13, 2012 5:49 pm

Hey up,
Trying to figure out if my RTABs are bad? I get a quick left to right arse wiggle when I kick the autobox down in sport mode, but under hard braking it seems fine.

It almost feels like the tyres have lost traction for a second then found grip and the rear end straightens up, the tyres are new and have loads of tread.

Upon visual inspection the bushes seem fine, I don't have any other problems with it. The car has 107k and as far as I know the RTABs are original.

What other tests can I do for check the RTABs?
Grrrmachine
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Post Tue Mar 13, 2012 7:03 pm

RTAB? :?
mcbonio
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Post Tue Mar 13, 2012 7:29 pm

Rear trailing arm bush.!
Grrrmachine
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Post Tue Mar 13, 2012 7:35 pm

You could've said!

There's not much to test without unbolting most of the subframe (including the diff) and giving it a good wiggle. Chances are though that after 20 years and 107k they'll be way past their best. The Wiki has a guide on replacing them.
mcbonio
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Post Tue Mar 13, 2012 7:56 pm

Yeah I've read it, looks like a right job.

Other forum members say they affect overall handling too, which i'm not experiencing. My car is pretty damn tight, I think It may be the crap tyres I have on the rear. I'm gonna change them and get a geometry check, tracking and wheel balance done.

I'll get back to you guys on this.
kam-325i
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Post Wed Mar 14, 2012 10:30 pm

Check The RSF/ACB's aswell......
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