Cobra Jet
Well-Known Member
I’m in NJ and have driven many of its roads both back roads, town roads and the highways (Parkway, Turnpike, Expressway, 295, 42, 70, 206, etc etc etc)…. All such roads have a crown and not all are the best of surfaces. I have not experienced what you explain as far as tramlining or constantly having to correct the vehicle’s steering actions while driving. Not saying it can’t happen, just saying with my S550, I haven’t had to battle with the car pulling L or R.
If what you’re saying is occurring with your S550, I would do the following:
- Get the alignment checked out. Even though it may be stock and the car is fairly new, just because of that doesn’t mean the alignment is correct.
- Have the front and rear wheel bearings checked. There have been many threads on here of M6G members having to have front and rear wheel bearings replaced due to premature failure. I’m talking about owners who have very low miles and some have even had them replaced 2-3x under warranty. Whatever vendor was contracted for the stock wheel hub bearings, they’re junk parts.
- Tire pressure is important. Always check tire pressure when cold before driving and check when outside temps change because tires don’t maintain same temps when it’s 40* vs when it’s 70*…. Tire psi will be on the driver door B-pillar label; keep the psi at least exact or within 1-2lbs of the label, because tire psi will increase once driving as the tires heat up.
- There’s also been threads on here about the rear IRS cradle not being aligned 100% from the factory, that is not part of the “alignment” mentioned above. Check for the threads on here regarding the rear chassis cradle alignment…
- Check lug nut torque
- Check the rear axle nuts; common issue of those coming loose and there’s quite a few threads on here too about that.
If what you’re saying is occurring with your S550, I would do the following:
- Get the alignment checked out. Even though it may be stock and the car is fairly new, just because of that doesn’t mean the alignment is correct.
- Have the front and rear wheel bearings checked. There have been many threads on here of M6G members having to have front and rear wheel bearings replaced due to premature failure. I’m talking about owners who have very low miles and some have even had them replaced 2-3x under warranty. Whatever vendor was contracted for the stock wheel hub bearings, they’re junk parts.
- Tire pressure is important. Always check tire pressure when cold before driving and check when outside temps change because tires don’t maintain same temps when it’s 40* vs when it’s 70*…. Tire psi will be on the driver door B-pillar label; keep the psi at least exact or within 1-2lbs of the label, because tire psi will increase once driving as the tires heat up.
- There’s also been threads on here about the rear IRS cradle not being aligned 100% from the factory, that is not part of the “alignment” mentioned above. Check for the threads on here regarding the rear chassis cradle alignment…
- Check lug nut torque
- Check the rear axle nuts; common issue of those coming loose and there’s quite a few threads on here too about that.
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