Question : I JUST bought a used 1996
BMW 318i with an M43 power plant.
I am facing the following problems:
1. The car 'slips' at the rear when driven over potholes or manhole covers.
2. When driven (moderate speed of
between 60 and 80km) through water
puddles, I have to hold the steering
with both hands or otherwise I am not
sure where I will end up!
3. Experiencing hard ride from both
front and rear suspension.
I have replaced the following items:
a. Front shocks are new - Boge.
b. Front coils are new - standard.
c. New front absorber mounting bush
d. Replaced ball joints (two each side)
e. New front lower arm bush - OEM.
f. Replaced both rod ends - OEM.
g. Replaced rear bearings - SKF.
h. Checked chassis and was told that
the car was not involved in any
Tyres are BS Turanza AR 10 205/55
I have done wheel alignment and
balancing a couple of times.
Rear absorbers are Boge (came with
My mechanic has repaired the worn
steering pinion shaft.
I was told that the rear lower arm
bush was worn but nothing has been
My mechanic said one of the rear
absorbers may not be in a good condition.
As it appears that you have done a lot
of work on the suspension and replaced
most of the worn parts, the problem
most likely is not from that area.
I am however a bit suspicious about
the wheel size you are using.
My information is that your car should
be using 15-inch wheels but yours are 16-
inch but with the correct section tyres.
If someone has replaced the wheels to
16-inch from the original 15-inch, then
that is the cause of your problem as the
wheels may not have the correct offset
and that is causing the wandering and
This is also shown by the difficulty in
driving the car over water puddles as the
car wants to drive itself.
The bigger wheels also contribute to
higher unsprung weight and hence your
If however I am wrong in the wheel
size, you should still check the wheel offsets as I am sure the wheel offset is wrong
or else the car would not be wandering