SL55/63/65/R230 AMG: "churp" When Starting Out
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Newbie
Joined: Nov 2002
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From: fox chapel pa.
sl500 2003
"churp" When Starting Out
HELP,
HAS ANYONE HAD THE CHURPING SOUND I HEAR WHEN STARTING OUT. LOW TO MEDIUM THROTTLE. ITS QUICK SOUNDING, ALMOST A CLICK. I HAVE JUST OVER A THOUSAND MILES. I HAVENT DISCUSSED OR BROUGHT IT TO THE DEALER YET.
HAS ANYONE HAD THE CHURPING SOUND I HEAR WHEN STARTING OUT. LOW TO MEDIUM THROTTLE. ITS QUICK SOUNDING, ALMOST A CLICK. I HAVE JUST OVER A THOUSAND MILES. I HAVENT DISCUSSED OR BROUGHT IT TO THE DEALER YET.
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From: florida/california
2003 CLK500
I have the same chirp; dealer hears it and 'says' it's perfectly normal in the SL55 due to the free-flowing exhaust system.
It's a chirp or almost a 'twang', and occurs sometimes at less-than-full acceleration, or even in moderate cornering if you then sort of stick the throttle just a bit. It's not terribly bothersome, but I did call it to their attention. Again they say it's in the SL55 exhaust, and is because it's free-flowing. I would very much be interested should you learn otherwise, or if there's a fix for this.
thanks!
By the way, do any SL55 owners get brake squeal after driving a bit? Basically wonderful car, but these are the only 2 oddities.
thanks...
gene
___________________
'03 SL55 black/charcoal
all options but distronic
It's a chirp or almost a 'twang', and occurs sometimes at less-than-full acceleration, or even in moderate cornering if you then sort of stick the throttle just a bit. It's not terribly bothersome, but I did call it to their attention. Again they say it's in the SL55 exhaust, and is because it's free-flowing. I would very much be interested should you learn otherwise, or if there's a fix for this.
thanks!
By the way, do any SL55 owners get brake squeal after driving a bit? Basically wonderful car, but these are the only 2 oddities.
thanks...
gene
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'03 SL55 black/charcoal
all options but distronic
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From: florida/california
2003 CLK500
thanks Jim... it would be interesting if we are the only 'folks' with these issues; the 'chirp' (must be identical) isn't bothersome; the brake squealing is; it's primarily at low-speed only (works great on the highway and when cool); was said by them to be glazing at the start (they changed pads and rotors once), but it came back... I can't accept that this is considered normal simply as it's a fast car with superior brakes (though the material used in the discs on the 55 may be an issue). I would appreciate anything you learn about this, and I'll share the same.
Regards,
gene
__________________
'03 SL55 black/gray
all options but distronic
Regards,
gene
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'03 SL55 black/gray
all options but distronic
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From: florida/california
2003 CLK500
By the way, I'm sure many of us would value knowing whether a low-speed break squeal is evident on other SL55's, or not, if you gentlemen (and particularly MB reps) might share that information
thanks!
gene
________________
'03 SL55 black/gray
all options but distronic
www.ingerletter.com
thanks!
gene
________________
'03 SL55 black/gray
all options but distronic
www.ingerletter.com
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Joined: Jan 2003
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From: Houston, TX
2003 sl55 AMG
Clank, nor Churp
I think it's a metallic "clanking" sound, and the dealer (Greenway Benz in Houston) confirms that it's the supercharger clutch going in. It only happens with a low to moderate acceleration, and not when you are more aggressive with the gas pedal.
Nothing to do about it, same apparently as the brake squeal, which I have still after 5,500 miles.
Nothing to do about it, same apparently as the brake squeal, which I have still after 5,500 miles.
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Newbie
Joined: Aug 2003
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From: Marin, CA
SL55
"Churp"
I too had the churp in my SL55. Went to the dealer 2 times about it. The first time they said it was normal. The second time they put some type of material (I do not know what) on the supercharger clutch. It has reduced the noise substantially but it is sometimes still there. The dealer recommended that I call MB about it just for future protection in case there is a problem in the future.
Also, I have the slight sound from the fuel pump in the gas tank in the rear of the car. Am told it is normal even though I see that some others are having their tanks replaced.
BUT, I love this car!!!!
Best I have ever owned and I bought it to replace a 1999 Ferrari 355 F1 Spider and a 1996 Porsche 911.
Good luck with your churp!
Also, I have the slight sound from the fuel pump in the gas tank in the rear of the car. Am told it is normal even though I see that some others are having their tanks replaced.
BUT, I love this car!!!!
Best I have ever owned and I bought it to replace a 1999 Ferrari 355 F1 Spider and a 1996 Porsche 911.
Good luck with your churp!
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From: florida/california
2003 CLK500
thanks gentlemen... appreciate knowing my SL55 isn't alone with the churp (and yes, light stabs on the throttle elicit that, not the full-throttle applications, which of course never occur.... too fast); it's very mild and not particularly annoying, just wondered.
As to the brake squeal; that's not always present; primarily on low-speed 'cruising' after being warmed up; not present at all in other conditions. Suspect it is the ceramaic disc material used to ensure high-speed superior braking.
I too should have noted that after 2 Ferraris, 2 Porches, 1 awful BMW 850 (years ago), this is my 8th Benz, and by far not only the best 'benz, but the best engineered and reliable overall car that I can recall owning, with the fewest irritations and no mechanical flaws (this one was build in Feb. '03, so I think has the gas tank change and some other minor changes since last year that I was luckly enough not to have to address). It is a fantastic car!
cheers..
gene
____________________
'03 SL55 black/gray
all options but distronic
www.ingerletter.com
As to the brake squeal; that's not always present; primarily on low-speed 'cruising' after being warmed up; not present at all in other conditions. Suspect it is the ceramaic disc material used to ensure high-speed superior braking.
I too should have noted that after 2 Ferraris, 2 Porches, 1 awful BMW 850 (years ago), this is my 8th Benz, and by far not only the best 'benz, but the best engineered and reliable overall car that I can recall owning, with the fewest irritations and no mechanical flaws (this one was build in Feb. '03, so I think has the gas tank change and some other minor changes since last year that I was luckly enough not to have to address). It is a fantastic car!
cheers..
gene
____________________
'03 SL55 black/gray
all options but distronic
www.ingerletter.com
Senior Member
Joined: Aug 2002
Posts: 267
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From: U.K.
SL55
I have the chirp but it’s more like a very quick squeak. I was told it was the supercharger clutch. Brakes squeak when hot as well.
I have a 'donk' from the front nearside suspension when manoeuvring slowly on lock and also a 'grunt' from the rear offside area under heavy braking when pushing the car hard.
Still love it though
I have a 'donk' from the front nearside suspension when manoeuvring slowly on lock and also a 'grunt' from the rear offside area under heavy braking when pushing the car hard.
Still love it though
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From: Texas
2003 SL55, 2004 E500, 2004 Porsche Turbo Cab, 2007 Ferrari 599, 1988 Ferrari GTS
I think I have a donk as well. I thought it was something sliding in the trunk. Any idea what it might be? Anyone?
Senior Member
Joined: Aug 2002
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From: UK
my SL55 is January 2003 and now done 4000 miles with no problems. I have the churp but I also had it on my SLK 230 Kompressor and when I asked the dealer he said it was the supercharger kicking in and not to worry. The SLK did 46,000 miles with no problems.
No brake squeal.
No brake squeal.
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Joined: Jan 2003
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From: canada
2002 S430, 2001 ML 55, SL 55 on order
my sl55 just developed the same chirping noise you are all referring too. i have 4500 klms and heard it for the first time today. my brakes squeak as well but i didnt bother taking it to the dealer for that yet. this week i will take it in for both noises and they better not tell me that chirping is normal because i wont accept that for an answer. it cant be.
i will post when i find out what they say.
realcanuk
i will post when i find out what they say.
realcanuk
Newbie
Joined: Aug 2003
Posts: 3
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From: Marin, CA
SL55
Update on churp
I had previously replied that I had a churp on my SL55 and that the dealer had put something on the supercharger clutch that seemed to be helping. He called it a "compound" of some sort.
Well, after several weeks, the churp is gone completely. If you have the problem, you may ask your dealer about the solution my dealer used (RAB Motors in San Rafael, CA).
Good luck!
