What have you done to your car today?
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Devon
Washed the car today after the 1.800km long trip this week. Then took off rear brake pads to search for the reason for rather silent squeeking that could be heard occasionaly while driving and would stop when braking or merely touching the brakes. It was clearly coming from the back.
However I cleaned everything, greased a little and put back together. We'll see...
I also spotted another problem. Front wheels seem to rub on both sides at the same spot. I have no idea, why. I'm running E90 wheels (ET34 front, equals 13mm spacers). I don't think this is the reason, it shouldn't rub with such setup. Tracking maybe? Or something else?
You can see it's worse on the right side where the plastic is rubbed through. Rubbing can also be seen on the tires.
Any idea?
However I cleaned everything, greased a little and put back together. We'll see...
I also spotted another problem. Front wheels seem to rub on both sides at the same spot. I have no idea, why. I'm running E90 wheels (ET34 front, equals 13mm spacers). I don't think this is the reason, it shouldn't rub with such setup. Tracking maybe? Or something else?
You can see it's worse on the right side where the plastic is rubbed through. Rubbing can also be seen on the tires.
Any idea?
x-driver said:
That does seem strange as I ran my previous E86 with E89 wheels, so fronts were 8J x 18 ET29 rather than ET47 but I didn't get any rubbing on standard Sport suspension.
Are you running a lower set-up like Eibachs or similar?
Mr Tidy said:
The car has factory M sport suspension and factory tyre dimensions for 18". So the only anomaly from being totally original is the E90 rims with ET34.j3nks79 said:
7000km / 10 months ago also these parts were replaced: 31126783376 (lollipops I believe).
tropicalbob
Member
Mid July I replaced my cabin air filter and truck struts. Yesterday I replaced my right headlight assembly, but I need to find a place to adjust the beam level.
Since some of the latest posts are about wheels, I wanted to ask if anyone thinks 17x8 or 17x7.5 with 35 offset would have any clearance issues?
I have stock 16" wheels at the moment with the 47 offset and I think stock suspension setup.
Since some of the latest posts are about wheels, I wanted to ask if anyone thinks 17x8 or 17x7.5 with 35 offset would have any clearance issues?
I have stock 16" wheels at the moment with the 47 offset and I think stock suspension setup.
You only usually get wear on the wheel-arch liner in that particular spot if your front shocks are old and tired and the car bottoms out on high-speed compression bumps. Is your Z4 on old/original shock absorbers ? I'm running ET34 on the front of mine and it would rub in that spot before I replaced the old Sachs shocks with Bilstein B4 all round. Never done it since. Also, your front tyres are very worn on the outer shoulder so I would definitely get the tracking looked atx-driver said:
axelleveau
Member
Got back from 3 days away in the Peak District, the Coupe did not miss a beat, was suited to both the motorway and the twisties as always. Now have to wash the tree tar and bird poop from parking there 
My shocks are still original, but the car has only 119.000km at the moment. Could they be bad just because of age?patriot66 said:You only usually get wear on the wheel-arch liner in that particular spot if your front shocks are old and tired and the car bottoms out on high-speed compression bumps. Is your Z4 on old/original shock absorbers ? I'm running ET34 on the front of mine and it would rub in that spot before I replaced the old Sachs shocks with Bilstein B4 all round. Never done it since. Also, your front tyres are very worn on the outer shoulder so I would definitely get the tracking looked atx-driver said:
I went to check the tracking today, it was a bit off, but nothing serious. I doubt I solved anything by correcting it.
Attleborough, Norfolk
Anything over 80,000km and your shocks are on borrowed time. It tends to be the gas that leaks away, so no visible signs and also affected as much by time as by mileage.x-driver said:My shocks are still original, but the car has only 119.000km at the moment. Could they be bad just because of age?patriot66 said:You only usually get wear on the wheel-arch liner in that particular spot if your front shocks are old and tired and the car bottoms out on high-speed compression bumps. Is your Z4 on old/original shock absorbers ? I'm running ET34 on the front of mine and it would rub in that spot before I replaced the old Sachs shocks with Bilstein B4 all round. Never done it since. Also, your front tyres are very worn on the outer shoulder so I would definitely get the tracking looked atx-driver said:
I went to check the tracking today, it was a bit off, but nothing serious. I doubt I solved anything by correcting it.
Gothenburg
I spotted some very slight rubbing on the rear (both sides) wheel-arch liner on my Coupé (3.0si). I'm running standard staggered 18" wheels and tires with original M-sport springs and shocks (100,000km). I wonder if my shocks might be bad as well?
Or if it is possible that the standard set up can bottom out on high-speed compression bumps and that the tire can touch the liner?
I did not see any sign of rubbing on the front.
Or if it is possible that the standard set up can bottom out on high-speed compression bumps and that the tire can touch the liner?
I did not see any sign of rubbing on the front.
x-driver said:
Looks like you have two choices -
(1) Accept your shocks are old and likely past their best, and maybe the source of your arch-rubbing, and change them. Worst case scenario is that you find that it hasn't solved the rubbing, but you've got nice new shocks which will last for years.
(2) Hope that they're not causing the rubbing and keep driving them until they break or you notice the suspension feels terrible.
My original Sachs were 14 years old and approx 112,000km when I replaced them. Three were completely empty of oil and gas and the fourth was almost as bad. Your shocks WILL be completely ineffectualx-driver said:My shocks are still original, but the car has only 119.000km at the moment. Could they be bad just because of age?patriot66 said:You only usually get wear on the wheel-arch liner in that particular spot if your front shocks are old and tired and the car bottoms out on high-speed compression bumps. Is your Z4 on old/original shock absorbers ? I'm running ET34 on the front of mine and it would rub in that spot before I replaced the old Sachs shocks with Bilstein B4 all round. Never done it since. Also, your front tyres are very worn on the outer shoulder so I would definitely get the tracking looked atx-driver said:
I went to check the tracking today, it was a bit off, but nothing serious. I doubt I solved anything by correcting it.
You are just used to how the car feels and drives. Fit 4 new shocks (I would recommend oem Sachs or Bilstein B4) and your car will ride and handle so much better and will also be much safer 