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2001 S55 AMG
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68 Posts
Discussion Starter · #1 ·
I don't know if it's just me, but for some reason today I thought my car's steering wheel was vibrating more than normal. I would not really feel it in the car, just the steering wheel and a little bit on the pedals.

Is it normal to feel any vibration in the steering around 60mph? Or should it be completely smooth?

It snowed in the morning, so I thought maybe some snow got in the wheel well or tire, but the roads have been clear and I still got some vibration around 60mph, and sometimes at around 30mph too.

I know my rear flex disk is a little bit cracked, could that possibly cause some vibration? It's very minor. I also got motor and transmission mounts in recently, possibly they were not put in 100% tightly?

Any ideas would be welcome, I know vibrations are a common question and hard to diagnose!
 

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2001 E320 - Brilliant Silver/Ash: 107,000+
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17,201 Posts
It should be smooth at all speeds. I think that flex disc is a possibilty but the simplest and least expensive way to start is with a wheel balance (road force preferably). Maybe one of the weights fell off? Plus tires can go bad after driving for a while, that has happened to me. I'd take it to the best tire shop you can find. How confident are you in that the tech who put in the mounts?
 

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1985 Cali 300DT, 1980 300CD, 1983 911SC (RS-style), 1998 540i
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45 Posts
I have the similar problem with my 1999 E320. There is a slight vibration on every 10-20 or so seconds while the car is at a stop light. During driving there's no issue, it smooth as new. I took it to the shop. They investigate (checked by stepping on break and revving the engine) and ruled out engine mount. They suspect Transmission mount which they changed. But the vibrations still persist. I them added fuel injectors cleaner - Still same vibrations issue.

I open the hood to listen at the engine at idle. There are no vibrations but I do hear a hissing sound on the driver side. Not sure what that is or whether it was there all along.

labdag
 

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2001 S55 AMG
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68 Posts
Discussion Starter · #5 ·
It's possible the wheels are not balanced fully. The vibration is as of now extremely small - in fact it may even be close to normal but for some reason I had not noticed it before.

When I drive close to a wall or divider, or even another car, I can hear what sounds like ticking (maybe the valves?) or some type of noise like that - is that normal?
 

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2001 E320 - Brilliant Silver/Ash: 107,000+
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Valves can tick and lifters can make such sounds but it is not normal. Your best bet would be to ask about your issues on the W220 forum. For some odd reason, there is no devoted forum for the W220/W221 S55/S63/S65 when all the other AMGs are represented. So maybe the General AMG might be a good place too.
 

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2004 W220 (S430) ; 2001 R129 (SL500) Sport
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1,335 Posts
Do you have after market wheels? Sometimes they are not quite so true as OEM wheels are. Also, it may be you've hit something and bent a wheel slightly. This is particularly possible if you have very low profile tires that are not inflated to the recommended level. There isn't much shock absorbing potential for a 35 aspect ratio tire side wall even when it is inflated properly.

Just some ideas. Musikmann's suggestion about wheel balance is most likely your problem; at least that's the place to start.

Good luck.
 

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2001 S55 AMG
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68 Posts
Discussion Starter · #8 ·
Actually, on the front drivers side, where I think the noise is coming from, I think I did slightly hit a curb. The tire has a small tear in it, air does not leak out but it's a gash on the tire near the rim.

The rims are OEM.
 

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Mercedes CLK 230 K
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50 Posts
as already mentioned vibrations around 50-60mh are generally caused by wheels out of balance, mainly on the front wheels as this inbalance will be felt through the steering wheel, but the rear wheels should also be balanced to prevent uneven wear on the tyre/suspension etc.
Maake sure this is done properly, i know lots of tyre fitters who just dont know how to balance wheels correctly,
you could also jack up each corner and rotate the wheels to check the tyres for trueness, look for uneven tyre wear, and high/low spots on the tyre.

As far as cuts in the tyres are concerned, if in doubt have them checked by someone who knows what to look for, they might not be leaking now, but that doesn't mean they couldn't suddenly split, and i dont need to tell you the consequences of that happening on the motorway/freeway.
 
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