What Have You Done To Your Merc Today?

th3h1ghlander

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Location
Wendover
Your Mercedes
CLS 350cdi (C218) 2012 / OM642
Drove 100mile round trip in the W203 C270cdi today, and the knocking I was hearing on acceleration is a lot worse today! :’(. Driving up to the Lake District from London on Monday so no chance to get it looked at before then... hoping I make the trip there and back!

The cause has got me a bit baffled as my indie couldn’t see anything!

Symptom: knocking on any acceleration from 0-30, even rolling under idle power from 0 produces the knocking but it totally disappears once you hit 30, and you can accelerate in any manner, not hearing it. If I barely accelerate at all from zero, creeping up to speed as slowly as possible it reduces the knocking almost to zero.

I have zero clue as to what the issue could be. My gut tells me it is something in the drive train, possibly on a drive shaft/prop shaft, if there is some sort of bushing or shock-absorbing mount that needs replacing? Any ideas ping me, or tell me I am being silly

Wish me luck with the 500 mile round trip!


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th3h1ghlander

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Wendover
Your Mercedes
CLS 350cdi (C218) 2012 / OM642
They don't tend to get ingested until very very high mileage, they usually just leak oil/boost.

Cheers, will definitely look out for that. As soon as I get back from Lake District I will be seriously beginning the search for a CLS 320/350


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Dean Fletcher

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Location
Penrith, Cumbria
Your Mercedes
Mercedes E400
Whats the best budget code reader, I want something that gives live data. Now that the wife has her own car and I have my van I'm going to get to the bottom of the little niggles. Starting with the pressure sensor. I want to check the idle bar pressure to see if it's the sensor that's buggered. In the mean time I'll check the wiring to make sure there's no short. Anyhow is icarsoft a decent buy?
 

th3h1ghlander

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Location
Wendover
Your Mercedes
CLS 350cdi (C218) 2012 / OM642
Whats the best budget code reader, I want something that gives live data. Now that the wife has her own car and I have my van I'm going to get to the bottom of the little niggles. Starting with the pressure sensor. I want to check the idle bar pressure to see if it's the sensor that's buggered. In the mean time I'll check the wiring to make sure there's no short. Anyhow is icarsoft a decent buy?

Despite not finding a legit dealer, I got the Autel MaxiAP AP200 which does do live data (for a lot of modules but maybe not all)
It works the the free Autel app for iOS and Android, and (unlike Carly) the first manufacturer is free with registration instead of a monthly subscription. For £45 I am not sure you can find better.

If you want I can send you some screenshots of the pressure sensor readings I get (it did seem to do along those lines)


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Dean Fletcher

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Penrith, Cumbria
Your Mercedes
Mercedes E400
Despite not finding a legit dealer, I got the Autel MaxiAP AP200 which does do live data (for a lot of modules but maybe not all)
It works the the free Autel app for iOS and Android, and (unlike Carly) the first manufacturer is free with registration instead of a monthly subscription. For £45 I am not sure you can find better.

If you want I can send you some screenshots of the pressure sensor readings I get (it did seem to do along those lines)


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That would be great thank you.
 

th3h1ghlander

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Location
Wendover
Your Mercedes
CLS 350cdi (C218) 2012 / OM642
In-between the bouts of rain today, I have chucked on the roof bars, bike carriers and the bikes; ready for my run up to the Lake District. Did the usual, checking coolant level, oil level (thanks for making that “Sooo” easy on this year w203 MB) and the tyre pressures on both the car and bikes.

Used this occasion to test out the NOCO Boost XL Li-Po Jump pack, using it to power the Streetwise Air compressor. All seems to work fine and dandy. Road trip time!

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alexanderfoti

MBO Forum Supporter
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Mar 25, 2010
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15,148
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Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
Drove 100mile round trip in the W203 C270cdi today, and the knocking I was hearing on acceleration is a lot worse today! :’(. Driving up to the Lake District from London on Monday so no chance to get it looked at before then... hoping I make the trip there and back!

The cause has got me a bit baffled as my indie couldn’t see anything!

Symptom: knocking on any acceleration from 0-30, even rolling under idle power from 0 produces the knocking but it totally disappears once you hit 30, and you can accelerate in any manner, not hearing it. If I barely accelerate at all from zero, creeping up to speed as slowly as possible it reduces the knocking almost to zero.

I have zero clue as to what the issue could be. My gut tells me it is something in the drive train, possibly on a drive shaft/prop shaft, if there is some sort of bushing or shock-absorbing mount that needs replacing? Any ideas ping me, or tell me I am being silly

Wish me luck with the 500 mile round trip!


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Yes, driveshaft failing or Uj in the prop failing. Putting a heavy load in the boot will change the angle of the driveshafts joints and may make it worse/better to assist in diag.
 

00slk

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Cambridgeshire UK
Your Mercedes
2002 SL55 AMG, 2005 E320 CDi, 2014 SLK250 CDi, 2003 SLK200
MoT booked and on my way, first off flat tyre when I approached the car ....................The Money Pit strikes again :mad: :mad: power steering decides it don't want fluid, then the left door mirror indicator fails..................Cancel test, and turn back. This car now is officially the worse car I have ever had the misfortune to own! It has taken first place over the Escort turbo diesel...................:eek: How much would I get back if I broke her up for parts?? :(
 

alexanderfoti

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Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
MoT booked and on my way, first off flat tyre when I approached the car ....................The Money Pit strikes again :mad: :mad: power steering decides it don't want fluid, then the left door mirror indicator fails..................Cancel test, and turn back. This car now is officially the worse car I have ever had the misfortune to own! It has taken first place over the Escort turbo diesel...................:eek: How much would I get back if I broke her up for parts?? :(
Which one is this, the 211?
 

alexanderfoti

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W221 S65 AMG - W204 C63 AMG + Various other MB's
Yes Alex, I bought off an Indy last November and it is now called the 'Money Pit' I wish I had kept the light blue one now :(
Mine is the same, bought off a member here (sold in good faith!)

Needed:
Water pump
Turbo
2x injectors
Front camber arms
front caster arms
front inner ball joint
front shock absorbers
front wheel bearings
Front upper ball joints
Front springs
2 x front tyres
Aux battery

Other than that its a bargain..... :)
 

00slk

Senior Member
Joined
Dec 1, 2012
Messages
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Location
Cambridgeshire UK
Your Mercedes
2002 SL55 AMG, 2005 E320 CDi, 2014 SLK250 CDi, 2003 SLK200
Mine is the same, bought off a member here (sold in good faith!)

Needed:
Water pump
Turbo
2x injectors
Front camber arms
front caster arms
front inner ball joint
front shock absorbers
front wheel bearings
Front upper ball joints
Front springs
2 x front tyres
Aux battery

Other than that its a bargain..... :)

At least yours were just worn out parts, mine keeps breaking things or going wrong.
Now it is pressurising the water in the header tank, even after 3 days of longer when I remove the radiator cap it blows it off with loads of pressure :shock: If I take the cap off when it has been running and only one bar on the temp gauge the air rush is followed by water o_O Remember the episodes with the radiator hoses blowing off all the time, these are now hose clipped on tightly. 1 issue sorted :D
Still, I will just bite the bullet and carry one with the car until it bankrupts me. Going to collect a transmission and torque converter, headlights, power steering pipe and what ever else it will need in a couple of weeks time :rolleyes: Only problem now is it will have no MoT or Tax :(
On a brighter note, the sun is out and the 55 has a roof that disappears into the boot :cool:
 

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