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*Premium Member
2012 SLK55 AMG
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133 Posts
Discussion Starter · #3 ·
Is it possible to post a video on here of this car running. I've posted it elsewhere and a number of people have said it sounds rough as hell. I figured it was just because of the surroundings of the showroom, but I'd like some more opinions if possible.
 

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*Administrator (Premium Member)
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42,005 Posts
Is it possible to post a video on here of this car running. I've posted it elsewhere and a number of people have said it sounds rough as hell. I figured it was just because of the surroundings of the showroom, but I'd like some more opinions if possible.
Yes.
Save vid to youtube and then post url link here.
FAQ

Once you have it don't forget to update ;)
 

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*Premium Member
2012 SLK55 AMG
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133 Posts
Discussion Starter · #5 ·
Yes.
Save vid to youtube and then post url link here.
FAQ

Once you have it don't forget to update ;)
Thank you.

Below is the link to the video of what some have said is a very rough sounding 55 AMG that I've just put a deposit on. It's done 34,000 miles, has a comprehensive service history including transmission service at 26,000 miles and the last service was 500 miles ago. I'm certainly not an expert on this model and it sounds to me pretty much as I expected. I'd appreciate some comments from those who know better and any pointers as to what the issue might be, if there is one.

Thanks

 

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*Administrator (Premium Member)
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42,005 Posts
Agree that it sounds odd, but perhaps due to the echo in the showroom as not as noticeable outside.
If it is an issue, possibly sticky exhaust flaps.

@Col is more familiar with this model and I believe is also familiar with the exhaust flaps issue.
@Carspito55 is also familiar with that model.
 

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*Premium Member
2012 SLK55 AMG
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133 Posts
Discussion Starter · #7 ·
Agree that it sounds odd, but perhaps due to the echo in the showroom as not as noticeable outside.
If it is an issue, possibly sticky exhaust flaps.

@Col is more familiar with this model and I believe is also familiar with the exhaust flaps issue.
@Carspito55 is also familiar with that model.
Thank you👍🏼
 

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*Premium Member
2012 SLK55 AMG
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10,397 Posts
@Daveg2812 Here is a link to mine (6) Cold Start AMG SLK55 - YouTube
From what I heard from yours the sound did improve when the car left the showroom. I would go back and get them to start the car outside of the showroom preferably from cold. What device did you record the sound on?
 

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*Premium Member
2012 SLK55 AMG
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133 Posts
Discussion Starter · #9 ·
@Daveg2812 Here is a link to mine (6) Cold Start AMG SLK55 - YouTube
From what I heard from yours the sound did improve when the car left the showroom. I would go back and get them to start the car outside of the showroom preferably from cold. What device did you record the sound on?
I recorded it on my Samsung mobile.
Yes, yours sounds a lot less "lumpy" than the white one. A few people have said it could be the surroundings, hard ceramic tiles, a lot of glass and other cars in there too.
 

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**Premium Member 2012 SLK55 AMG
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2,932 Posts
Hi @Daveg2812, it’s a small world. I was the one on the Facebook group that advised you to check the flap motors after the negative comments. I wouldn’t let it stop you making the purchase in any event even if they were faulty. It’s a simple fix (if the parts are available and not on back order) and I myself found that my own car had a duff flap motor when I bought it. I was covered by an MB approved used warranty so it was sorted foc. In your case it might a point of negotiation or if they won’t drop the price insist that they cover the cost of repair.

A few simple checks will determine the status of the flaps on the car.

1. Do a visual check by shining a torch down the inboard pipes. See if they are present and if they are in the same position with the ignition off.

2.With ignition on (engine off) you should witness both flaps open and close. If one or both don’t move you have a problem.

3. Check the cable is plugged into the motor on each side and they are not damaged.

Another thing to note is that all M152 engines have a slightly rough idle anyway. It is a characteristic of the engine. Sound doesn’t always accurately come over in videos, in fact they really do not do the car any justice whatsoever.

If you need anymore pointers give me a shout.

Looks like a tidy car, so good luck and I hope it all works out for you.

Col
 

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*Premium Member
2012 SLK55 AMG
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133 Posts
Discussion Starter · #13 ·
Thanks guys, I'm less concerned than I was after reading these comments, though I'll still mention it to the selling dealer. It does still have one possible issue though. It's these beauties 🤣 Yes, they really are metallic pink! They are also immaculate and I'm seriously considering keeping them.🤔😂
Wheel Tire Automotive tire Hood Motor vehicle
 

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*Premium Member
2012 SLK55 AMG
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133 Posts
Discussion Starter · #14 ·
Hi @Daveg2812, it’s a small world. I was the one on the Facebook group that advised you to check the flap motors after the negative comments. I wouldn’t let it stop you making the purchase in any event even if they were faulty. It’s a simple fix (if the parts are available and not on back order) and I myself found that my own car had a duff flap motor when I bought it. I was covered by an MB approved used warranty so it was sorted foc. In your case it might a point of negotiation or if they won’t drop the price insist that they cover the cost of repair.

A few simple checks will determine the status of the flaps on the car.

1. Do a visual check by shining a torch down the inboard pipes. See if they are present and if they are in the same position with the ignition off.

2.With ignition on (engine off) you should witness both flaps open and close. If one or both don’t move you have a problem.

3. Check the cable is plugged into the motor on each side and they are not damaged.

Another thing to note is that all M152 engines have a slightly rough idle anyway. It is a characteristic of the engine. Sound doesn’t always accurately come over in videos, in fact they really do not do the car any justice whatsoever.

If you need anymore pointers give me a shout.

Looks like a tidy car, so good luck and I hope it all works out for you.

Col
Thanks Col,

It's reassuring to get your feedback. I will go back to them and mention/check as you've described. Some of the comments on FB just throw a mental spanner in the works, with often no justification to back them up.
It's a very tidy car with a great spec and is about 5 miles down the road from where I live, so no trecking up and down the country needed either, which is a bonus. I'm told they often don't rev above 5k, a sort of limp mode when these flaps fail. There was no evidence of that on my test drives, though I only got the chance to try that on a couple of brief occasions.
I'm really looking forward to getting in it again!
Thanks, Dave
 

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**Registered 2005 SLK55 AMG
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152 Posts
Thank you.

Below is the link to the video of what some have said is a very rough sounding 55 AMG that I've just put a deposit on. It's done 34,000 miles, has a comprehensive service history including transmission service at 26,000 miles and the last service was 500 miles ago. I'm certainly not an expert on this model and it sounds to me pretty much as I expected. I'd appreciate some comments from those who know better and any pointers as to what the issue might be, if there is one.

Thanks

There‘s no way I’d buy a car that’s making that noise in the dealership. It could be an easy fix as Col says, but I’d be insisting on the garage fixing it before collection. The car has recently been serviced but the dealer should be fixing that before even advertising it.

Its a nice car and you could luck out with a straight forward fix, but it’s a risk in my view and there are a lot of cars about at that price point.

Just my view.
 

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*Premium Member
2012 SLK55 AMG
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133 Posts
Discussion Starter · #17 ·
There‘s no way I’d buy a car that’s making that noise in the dealership. It could be an easy fix as Col says, but I’d be insisting on the garage fixing it before collection. The car has recently been serviced but the dealer should be fixing that before even advertising it.

Its a nice car and you could luck out with a straight forward fix, but it’s a risk in my view and there are a lot of cars about at that price point.

Just my view.
So many conflicting opinions. As I've said, I'll get the garage to check it out.
As for many cars at that price point, with the spec this one has, very few about.
Dave
 

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*Registered
2008 SLK55 AMG w/P30
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192 Posts
I’m an absolute noob when it comes to mechanical stuff. It sure don’t sound right inside the showroom, sloppy flappy curry morning-after noises aren’t normal but surely the dealer would know to fix it if we’re misfiring on a cylinder or two.

question though: I don’t think the spec sheet says P30 and I think those callipers are bigger than standard r172 55?

I actually like the colour, but does it have aftermarket brakes? If so, then does it suggest a fair bit of track work?

even that wouldn’t put me off, but I would spend a couple of hundred quid and get a professional merc specialist mechanic to check it over. Turbo recommended one, check his posts.

good.luck, it sure is purty.
 

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*Premium Member
2012 SLK55 AMG
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133 Posts
Discussion Starter · #20 ·
Well @Daveg2812 it's the 1st. Have you finalized this deal? 🤞
No, not yet. Going in tomorrow. Might come home with it but not sure yet. Will certainly happen this week though. Sold my 350 though and that's going tomorrow I think, so hopefully won't be without wheels for too long!
 
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