Print Page | Close Window

shake at 70 mph

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 5 Series
Forum Discription: This forum will deal with any issues on the BMW 5 Series (E12, E28, E34, E39, E60 & E61)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=4997
Printed Date: 14-May-2024 at 07:03


Topic: shake at 70 mph
Posted By: Renkus
Subject: shake at 70 mph
Date Posted: 13-January-2004 at 17:46

 My 1999 528 tourer starts to shake through the front seats over 65 mph, peaks at 70, then seems to improve over that speed I've had the front wheels balanced but it's made no difference.

Any suggestions




Replies:
Posted By: grant w
Date Posted: 13-January-2004 at 22:30
post this thread on the 5 series technical forum you might get a answer then ...

-------------

www.redevom3.co.uk
1989 e30 m3 2.5
1996 e36 m3 evo , sold
2002 e46 m3 smg .
1991 Daihatsu 2.8 TD Work Horse
Rust Never Sleeps . Tattooed Lady - Bearded Baby - there my family ..


Posted By: kbannon
Date Posted: 13-January-2004 at 22:39
thread moved!!!

-------------
Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE
1997 E39 523i
2003 E39 525i Sport Individual


Posted By: Old shape!
Date Posted: 14-January-2004 at 12:03

Renkus.

Balancing the wheels does not always show a sideways movement (1) such as an "Egg" in the tyre.  Give them a good look over, preferably take them off and check.

Rear wheels can also get out of balance, and they may need doing.

Prop shaft can also get out of balance, but rather unlikely.  And it would be a bit noisy too if it was that.

(1) Although a Tyre man worth his salt would have spotted it when carying out the balance.

(1a) Unless he put the guard on the machine so the tyre was hidden during it's test-spin.  But again, if he was worth his salt, he should have done a final visual check without the guard on. 

I don't think it is more serious than tyres or wheels.  Buckled wheel maybe...kerbed it lately?

HTH.

regards

 



-------------
Paul DH
1994 E38 "Proud owner of a "3/4 engined E37.9 that's almost a real car with real paint...WITH 6 WASHER JETS!"
1989 520i (E34) Gone
1988 320i Coupe (E30) Gone
1995 520 Estate (E34) (Wife)
1992 320i SE OBC (E36) (Wife) Gone
1988 320i Saloon (E30) (Wife) Gone


Posted By: Peter Fenwick
Date Posted: 14-January-2004 at 13:57
I have had the same problem with several of the cars I have owned over the years and it has always gone away when I have had new tyres put on. My last car, a Primera, used to vibrate between 60 and 70 and  90 and 100. Had all four wheels balanced and it made no difference. Got four new tyres put on and the problem went away.

-------------
Entering an age of Austerity and now driving a Focus Diesel.


Posted By: Old shape!
Date Posted: 14-January-2004 at 14:14

So peter, at least one of those Primera tyres had a deformed tread, or an egg, or even a hard spot on the wall (Can happen with cheapo Taiwan type tyres).  Proof that balancing doesn't always work for the wheel wobble.

Wheel not go into the science of the frequency of wobble versus RPM of wheel and tyre pressure etc.  That needs a whole new forum!

regards



-------------
Paul DH
1994 E38 "Proud owner of a "3/4 engined E37.9 that's almost a real car with real paint...WITH 6 WASHER JETS!"
1989 520i (E34) Gone
1988 320i Coupe (E30) Gone
1995 520 Estate (E34) (Wife)
1992 320i SE OBC (E36) (Wife) Gone
1988 320i Saloon (E30) (Wife) Gone



Print Page | Close Window