naheem.ally

Hello I have a 2002 C200K W203 mercedes benz
The Probem started on Monday Afternoon when the car would start but sounded like like one of the spark plugs was not working.
had it towed home and the next morning it would crank but not start and also sounded like it did not have any compression (as per the Mech)
Now that they are checking it they say that there is no spark on all the plugs and are not sure why .
anyone experience this problem

C230 Sport Coup

My guess would be the crankshaft position sensor.
Without it sensing the position of the shaft, it won't fire the spark plugs.
It's a common failure an in the US one can be had for about $40.
I keep one in my glovebox but so far haven't needed it.

But I figured if it ever just refuses to start I'll at least already have the part
and should be able to replace it on the roadside if need be and hopefully avoid a trip to
a mechanic if I get lucky and thats the problem. But it's a common failure and it kills the car.
I also ordered some extra screws for the sensor just in case I drop one.
It's only one bolt but it's hard to get to, on the back of the engine by the
firewall.

One piston not firing is usually a bad coilpack (one per cylinder)
or a bad sparkplug.
So you might have a combination of those 2 problems, or...... ???
Hard to say from 10,000 miles away.

What does the diagnostic say? What codes?

naheem.ally

Hello Thanks for the reply but the mech that is busy with my car does not have a machine to check the codes . but has removed the from part of the head where you can see the two cam shalfs and says that when you crank the the car the left chalf is no moving and therefore he thinks that the left cam shalf is broken and that why there is not spark .

Does you post still apply :could it be the CPS (crankshalf Position Sensor)that would make the cam shalf no move when you trying to start the car .

naheem.ally

just got the car back from the mech .
The timing chain tensioner broke and one guide also
looks like on the one cam the timing jumped three teeths and
that cam does not move anymore .so i will have to redo the head .
any ideas on the cost of redoing the head !!!!

regard's
Naheem

C230 Sport Coup

oh damn. Thats about 1.5-2K US for the parts. Labor?
Read here...
https://mbworld.org/forums/c-class-w...ine-apart.html

naheem.ally

i know it is going to be expensive
but i have someone to do it
i will take my time to get it fix
will update this page when i am done

just as a possibility would it happen that the valves are still OK
and the only problem could be the timing chain and guides and tentioner ?


cause when this happen i had it towed and only reversed it in my yard.

naheem.ally

Hello anyone got any diagrams or diy with pictures on how to remove the Cylinder Head of a W203 C200K ?

naheem.ally

managed to get the cylinder head out and send it to the engineers .
found that all 16 Valves were bend and eight on the right hand side made dents in the pistons as well.
Now have to find info on what the torq setting for the head bolt for the cylinder head and how to replace the timing chain and it guides
anyone have any idea (DIY) with pics will do

Thanks

naheem.ally

Finished with putting back the cylinder head and settting the timing and got the car back on the road .drive much smoother and seems to be lighter on fuel . been testing it for a week now and got some problems .
1st issue is when the car is cold or when the aircon is on and you have the car in the reverse gear or the drive gear there seem to be a vibration on the left side of the engin . cant fiqure out what is loose coud be the enging mounting the gearbox mounting or the aircon compressor that is loose .need to remove the MAF unit and the intake manifold to check this or maybe first check under the car to see if the gearbos mounting is worn out .

2nd issue is when you driving the first gear change n the auto box is hard and the it jerks the car then lags .

took it to the mech and he check the code on his scanner but it show that a tooth was missing and refered to the p0335 (CPS) or something like that but his scanner is not a STAR

no sure if his code error is correct cause he reset it and the problem seem to disappear but return with the engin light on again the next day.
he ask me to carry on driving it for the rest of the week and bring it back to him.but during the week after he reset the engin light for the second time the problem return and then went away again and this time the engine light went off by its self BUT today it return again .

not sure what the issue is but it seem to be related to a sensor or something .maybe the sensor has water in it or is damaged .

Does anyone know how many sensor are on the gearbox of a C200k with a M271 engine

i can try to remove the cover and check but will have to wait till next Saturday to do that .


any info that can help will always be welcome

Regards

naheem.ally

Incase anyone is interested the cost of doing up the cylinder head and replacing all 16 valves plus serving the car and replacing the parts we broke was about $ 1790.00

did not take any photo's as we use the tread labeled :
"Which way does the M271 27mm crank bolt turn to loosen"


the tread had all the picture and instruction on how to remove and replace the cylinder head with the setting for the timing chain
followed the instruction as listed with perfect results .


special thanks to ambit your tread helped us perfectly

madalitso

Were you able to figure out what was causing the check engine light? I hate to possibly be the bearer of bad news, but it almost sounds like the timing may be off a tooth. That would cause it to run a little rough at idle like you describe, but it would smooth out at higher engine speeds. Also timing being off would be consistent with the recurring check engine light. One thing is code P0355 is "Ignition Coil E Primary/Secondary Circuit Malfunction" for cylinder #5. But you also said (CPS). It is very possible that the timing being off would cause a code related to the Camshaft Position Sensor or Crankshaft Position Sensor. If you can't get to the bottom of it, you may want to pull the valve cover again and re-check the timing, sometimes it's sort of tricky to get the timing right on DOHC motors. Either way let us know what you find, since I may end up doing one of these sooner rather than later.

naheem.ally

Hello :
we checked out your theory of the timing beening out and and the car giving p0335 error . found that the timing was still the same as we left it ,the intake cam was spot on and the exhaust was advance a bit .
we also noticed that the left hand side engine mounting was loose and we retighten it . i took my car to another mech yesterday and had the gearbox mounting replaced with oem from merc but there seems to be oil leaking from the gearbox .will be going back to him on Tuesday to do a oil change with new filter and seal . funny enough the oil in the gearbox still shows that it is full .

after tuesday we will see if there is still a jerk when it changes from 1st to 2nd and lags.

will updated you Wednesday

Regards