Son bought 2015 C220 ... broke down 3 hours later
Discussion
Gents , I haven’t got a clue about Mercedes, but hoping someone can help.
Yesterday I looked at a 2015 C220 with my son and it all appeared to be spot on, FSH, started fine from cold, drive fine on test drive etc. About 3 hours later coming off a dual carriageway the car started losing power and then cut out. It cranks over but doesn’t start. I pulled the codes and the following from a cheap generic reader
The dealer has said we need to recover the car back to him for him to diagnose and repair, ideally we would like to just return for a refund and find another one that lasts longer than 3 hours ! Looking online though a lot of people suggest the camshaft sensors almost never go wrong ?
Any gurus on this model who can offer some advice please, I’m pretty competent on the tools so if it is purely a cam sensor I would rather just replace it myself without all the hassle, equally I don’t want to be spending out on a sensor if that’s not the usual suspect .
Regards
Fb
Yesterday I looked at a 2015 C220 with my son and it all appeared to be spot on, FSH, started fine from cold, drive fine on test drive etc. About 3 hours later coming off a dual carriageway the car started losing power and then cut out. It cranks over but doesn’t start. I pulled the codes and the following from a cheap generic reader
The dealer has said we need to recover the car back to him for him to diagnose and repair, ideally we would like to just return for a refund and find another one that lasts longer than 3 hours ! Looking online though a lot of people suggest the camshaft sensors almost never go wrong ?
Any gurus on this model who can offer some advice please, I’m pretty competent on the tools so if it is purely a cam sensor I would rather just replace it myself without all the hassle, equally I don’t want to be spending out on a sensor if that’s not the usual suspect .
Regards
Fb
Dose it start once it has cooled down, ie 20 mins or so later?
I had the same with my SL, it would start and run ok but after 20 mins or so it would cut out and wouldn't restart until it had rested for a bit. It would then repeat the cycle.
One new crankshaft position sensor and all was well again, a cheap and easy fix.
Be wary of existing codes, they might noit relate to the particular problem you have and as mentioned a slightly under par battery used to flash up all sorts of warning messages on my SL.
You need somebody with STAR to run a diagnostics for you.
I would also be telling the dealer, particularly if it is a Merc dealer, and the car is Mercedes approved,that they need to recover the car at their cost unless you have a warranty that specifies otherwise. Is it covered under Mercedes mobilo life, if it is they will recover to the nearest Merc dealer anyway.
If it is Mercedes approved you have a 30 day exchange option, no questions asked as well.
I had the same with my SL, it would start and run ok but after 20 mins or so it would cut out and wouldn't restart until it had rested for a bit. It would then repeat the cycle.
One new crankshaft position sensor and all was well again, a cheap and easy fix.
Be wary of existing codes, they might noit relate to the particular problem you have and as mentioned a slightly under par battery used to flash up all sorts of warning messages on my SL.
You need somebody with STAR to run a diagnostics for you.
I would also be telling the dealer, particularly if it is a Merc dealer, and the car is Mercedes approved,that they need to recover the car at their cost unless you have a warranty that specifies otherwise. Is it covered under Mercedes mobilo life, if it is they will recover to the nearest Merc dealer anyway.
If it is Mercedes approved you have a 30 day exchange option, no questions asked as well.
Cheers for the replies so far.
Power doesn’t appear an issue as there plenty enough to turn it over till the cows come home, and it sounds like it almost wants to fire up but doesn’t. I haven’t tried it yet this morning for him but will do so shortly.
It was bought from a trader/dealer but not main agent. The guy has offered to sort it but we have to do all the leg work and he is just over an hour away. If it’s simple I will just sort it, if there’s more to it we will dump it back at his and go through the run around of trying to reject without giving him the opportunity to remedy.
Lad must be the unluckiest person I know. He bought a nice A5 from a lady last year that was all spot on with FSH etc, broke down 29 miles from home when the clutch made a bid for freedom ! Still joked yesterday with the dealer that at least the merc will get him home !!
Power doesn’t appear an issue as there plenty enough to turn it over till the cows come home, and it sounds like it almost wants to fire up but doesn’t. I haven’t tried it yet this morning for him but will do so shortly.
It was bought from a trader/dealer but not main agent. The guy has offered to sort it but we have to do all the leg work and he is just over an hour away. If it’s simple I will just sort it, if there’s more to it we will dump it back at his and go through the run around of trying to reject without giving him the opportunity to remedy.
Lad must be the unluckiest person I know. He bought a nice A5 from a lady last year that was all spot on with FSH etc, broke down 29 miles from home when the clutch made a bid for freedom ! Still joked yesterday with the dealer that at least the merc will get him home !!
stevemcs said:
Have you cleared the codes and without starting see which if any come back ?
If it is the cam sensor and they are identical you can swap them over and see if the fault moves.
I didn’t want to clear codes so if we end up at a garage they have something to go from. Trying my google foo to locate camshaft sensor but failing at that. If it is the cam sensor and they are identical you can swap them over and see if the fault moves.
Edited by fastbikes76 on Friday 12th November 23:00
LordLoveLength said:
2015 could be a late W204 or early W205
W204 has an aux battery (agm) in the boot by the spare which may be toast?
W205 has a super capacitor as aux battery. They go wrong. A lot.
Sorry about the poor pic.. turns out my quadlock managed to knacker my iPhone camera.W204 has an aux battery (agm) in the boot by the spare which may be toast?
W205 has a super capacitor as aux battery. They go wrong. A lot.
It has plenty battery power and doesn’t struggle to turn over in the least. The cam sensor code and non start appear to be related . Hoping to drag it to a local specialist tomorrow and leave it there for diag and full going over the car.
Capacitor puts a warning on the dash long before it fails, either way the main battery should still let it start.
I’d still be tempted to clear the codes, my guess is it’s the cam position sensor, it throws the timing and the car cannot start, the same thing happens if the crank sensor goes.
I’d still be tempted to clear the codes, my guess is it’s the cam position sensor, it throws the timing and the car cannot start, the same thing happens if the crank sensor goes.
It’s diesel and has correct fuel in.
It had just come off a 2 hour motorway drive and appears to have more than enough voltage
Not sure if these are belt or chain driven. Still sounds like compression is intake , I sadly know all to well the sound of a compression less engine spinning over.
Stevemc, would you be able to point out location of camshaft sensor on this particular model if possible. I’m more than hands on but having a brief look under the plastic I couldn’t find any sensors close enough to the cams to be it. I’m quite happy to nab a sensor from Merc tomorrow if they have stock and whack it on for him .
Poor b
d had a date last night be had put off until he picked up his flash motor, had to cancel as he wouldn’t pick her up in his minging Passat shed car 
It had just come off a 2 hour motorway drive and appears to have more than enough voltage
Not sure if these are belt or chain driven. Still sounds like compression is intake , I sadly know all to well the sound of a compression less engine spinning over.
Stevemc, would you be able to point out location of camshaft sensor on this particular model if possible. I’m more than hands on but having a brief look under the plastic I couldn’t find any sensors close enough to the cams to be it. I’m quite happy to nab a sensor from Merc tomorrow if they have stock and whack it on for him .
Poor b
d had a date last night be had put off until he picked up his flash motor, had to cancel as he wouldn’t pick her up in his minging Passat shed car OM651 is chain driven. CPS is located back right of engine as you look at it.
I'm not convinced a bad CPS would throw this many codes, but I don't know if that's due to your reader or not. What was the last MPG on the trip? I wonder if its an exhaust side issue, I.e. DPF or suchlike.
I'm not convinced a bad CPS would throw this many codes, but I don't know if that's due to your reader or not. What was the last MPG on the trip? I wonder if its an exhaust side issue, I.e. DPF or suchlike.
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