jojuseb

I have two issues and like time, hope to get answers from the forum.

1. Whenever the car is stopped at a stop light, the car shivers in idle.
2. At 50+ MPH, the ride is bumby. 4 tires are new purchased 2 weeks back - balancing was done then - complained to Sears and they replaced the 4 tires with a better set of tires - still the problem is there.

Before I go to to dealership and get whacked by a 1k bill, I would like to know what might be the cause. Any idea what might be causing this? Any help will be highly appreciated. Thanks.

MB>BMW

I have the same problems.

For the shivers it should be coil packs+new spark plugs.

For the ride, have a mechanic check your front ball joints.

How many miles do you have on your car?

lynall

Get your engine mounts checked first mine had collapsed 2001 e430.

I changed the spark plugs and plug leads on mine first and whilst there was an improvement the new mounts made the engine almost totally vibration free.


Lynall

TMAllison

The rubber rim 2nd from the top, up to the top of the mount, measures 17mm when new.

At 13mm the mount is considered collasped.

Use a 13mm bolt head as a feeler gauge.

patrick_y

The shivering could be from engine mounts.

Bumpy ride... that could be a multitude of things. Is one particular axle or particular side or particular wheel bumpier than the others?

jojuseb

Thanks to all for posting your replies. My laptop HD died on me last week hence did not get a chance to check the posts. My vehicle has 93,500 miles.

I took the bite and went to the MB dealer. Turned out 2 spark plug cables - they did not fire at all apparently but the plugs turned out to be fine. Once replaced it is almost smooth.

The bumby ride was an issue of tire balancing. Once rebalanced using Road Master, the ride is now very comfortable.

The recommendations from them was the following,

1. Change all spark plugs ($690)
2. Breather replacement for one value ($320)

Are the spark plugs this expensive? Any ideas? What would you recommend.

ohlord

spark plug tool.
Get 12 ngk7090 plugs at about 3bucks each and spend 2-3 hours doing your plugs.
pm me for the tool and i can talk you through the spark plug change.
Easy diy if you spend the time and follow directions.
Stop going to sears for tires
Stop going to the dealer for repairs
They will broke you

illest

I just changed my plugs a few weeks ago. I think I spent about $30 on plugs and it took about 1 hour to change them. Does the $690 include new wires ?

jojuseb

Nope - it is just for the spark plugs. Two of the wires are already replaced in this round of fix.

blueC230K

LOL i like the sarcasm. Yea, my car shivers in idle too. I had spark plugs change abour 10k ago. My tech says it's a sign for new motor mounts. Also, do you guys experience any "engine valve cover leakage"? both our W211 and W210 are leaking due to broken seal....

RichardM98

On the V6 in the W210 two common leakage areas are: 1) the oil inspection port which is a 1"x2" (roughly) plate mounted to the front of the engine just below the oil filter housing and 2) between the upper and lower portions of the valve covers. If you look carefully you'll see that there is a raised portion near the front of the valve cover on the left (driver side) one and near the rear on the right one. The fix is to remove the valve cover and lay a bead of sealant between the two halves.

Of course, there are a lot of other possible areas to leak so cleaning and then inspecting is the strategy.

Good luck

jojuseb

I had the engine mount inspected. The mech says that it is still pretty tight and not shaking. Nevertheless, I had them replace the 12 spark plugs. I am at 98K anyways. The shivering has slowed down, but still there. This puzzles me!!!