2007 CLK550 Noisy Engine
#1
Newbie
Thread Starter
Join Date: Jul 2009
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
2007 CLK 550
2007 CLK550 Noisy Engine
I've got a 2007 CLK550 that emits a loud whining noise whenever I cold start with the A/C on. Once the engine warms up and the A/C slows up a bit the whining decreases. I've asked the dealer about it but they just shrug it off & say it's normal. It's difficult to demonstrate as whenever I'm at the dealer the engine is warmed up and doesn't exhibit the excessive noise. My previous car was a Lexus SC430 which was super quiet-you couldn't tell the engine was running. Not only that, the dealer wouldn't have the "*****" to say that a whining, noisy engine was normal. I'm bringing it in for service on Friday & would appreciate any advice as to what to have the dealer check out.
Burt Stuttmnan
Burt Stuttmnan
#2
I have a 2008 550 clk and have the same problem. When I turn on the AC its almost as if a belt or something is rubbing as I can feel a slight vibration in the steering wheel. It is the same feeling you get when you crank a power steering wheel to far and you get that whine and vibration. It doesnt seem to affect performance but it is really annoying. Post what happens with the dealer.
#4
Banned
Join Date: Apr 2009
Location: Mexico
Posts: 555
Likes: 0
Received 0 Likes
on
0 Posts
09 CLK550
i havea 09 clk550 and when i turn my condition on it sounds as if my car has a jet engine! but so far so good that really don't bother me, it's quite on the inside.
#5
MBWorld Fanatic!
Join Date: Nov 2006
Location: Dallas, TX
Posts: 2,323
Likes: 0
Received 0 Likes
on
0 Posts
2012 CLS63
Unfortunately, it is pretty normal. Its the same on my 03 CLK500, its loud as hell from the outside, but I don't hear it inside. It sucks, but you just learn to deal with it.
#6
I think you are missing the point - it is not an engine squeal that goes away after it warms up. Many cars have that issue and it can be easily fixed by adjusting a loose belt. This is a squeal and vibration when you turn on the ac. It does not sound or feel like a loose belt. This happens if the car is warm or cold and whether it has been driven 1 mile or 200 miles. It seems like it must have something to do with the operation of the ac compressor.
#7
Newbie
Thread Starter
Join Date: Jul 2009
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
2007 CLK 550
I had it in the dealer last week for an A service and when I described it he didn't know what I was talking about as car was warmed up & engine sounded fine. But when I picked it up in late afternoon, he was with me & engine was screaming. So called over tech and of course he said it was normal. I know it doesn't affect performance but it pisses me off as it shouldn't be - there's no reason that the car shouldn't be as quiet as its competition.