2001 clk wont start

[bpcc06]

hi

new user to the forum, my 2001 320clk has developed a fault, engine turns over but wont start, i left it 10 minutes and it started with engine management light on. got home and after turning it over 3/4 times the engine light turned off. this hs happened before and i had the fuel pump replaced but dosent seem to have worked, i had the rac come out to me first time and bang the pump which got it going.

first time it happened was whilst I was driving

 

[Cole@MBS]

Welcome to the forums!

That will be your crank sensor u/s,

£70 from merc!!

 

[wardpaa]

crank sensor ?
when it doesn't start, does the rev counter read during cranking ?

 

[bpcc06]

wow how quick was the response many thanks, thats what i suspected from reqding the forum, can it be fitted by an independent as i have loads of problems with mb before.

if it happens again before i get it fixed are thera re tips to getting it going again

 

[television]

This will be the CPS as the starter motor spins.

It is number 5 in the link and cost £47 from Bosch or £87 from MB

http://www.detali.ru/cat/oem_mb2.as...GA=722.607&CT=M&cat=19Y&SID=15&SGR=075&SGN=04

 

[bpcc06]

Thanks malcolm, can it be fitted by an independant?

 

[television]

Thanks malcolm, can it be fitted by an independant?

Yes it can,, they can be a tight fit but they do come out

I forget to welcome you to the forum

 

[Cole@MBS]

Thanks malcolm, can it be fitted by an independant?

Everything can be done by a independant

 

[television]

Everything can be done by a independant

If he feels flush he could pay up to 3 times the price at a dealer. For at the dealer they could not change it till it went on STAR,,then you have the thinking time

 

[bpcc06]

sam

i have a local MB specialist similar to yoy close to me (essex), if you were replacing it for a customer what would you charge, just want to make sure not being overcharged

 

[Cole@MBS]

To be fair, half an hour labour, short test, to check for a fault code, takes me about (on a really hot engine) 5 mins to swap, and a lot of swearing!! so around £25!!! then cost of part on top of!!

 

[bpcc06]

wish you were local

info has been much appreciated

 

[Cole@MBS]

wish you were local

info has been much appreciated

I am local Sir, local to me!!

And also have many folk like yourself who live in london area but still drive down south to sort there problems and servicing out, it pays too!!

 

[MB-Car-Tech]

would have to agree with the Crankshaft sensor as previoulsy mentioned but I have not seen these fail and generate an engine warning light ???

just a thought !!!

You may find the Quick test would be a good starting point - excuse the pun !

Have experienced fuel pump relays fail as well and this can be tested by the Indie with fuel pressure test being carried out - about 5 mins to connect to the fuel rail and see what pressure is generated.

Good luck

 

[television]

I am local Sir, local to me!!

And also have many folk like yourself who live in london area but still drive down south to sort there problems and servicing out, it pays too!!

I am pleased that you are local to me as well,just 130 miles each way and I would not miss it for the world

 

[bpcc06]

mb car tech

rac thought it would go out after 3 or 4 successful attempts in starting the engine which appears to have been correct both times it had problems. he advised something the do with low fuel pressure

 

[Cole@MBS]

would have to agree with the Crankshaft sensor as previoulsy mentioned but I have not seen these fail and generate an engine warning light ???

just a thought !!!

You may find the Quick test would be a good starting point - excuse the pun !

Have experienced fuel pump relays fail as well and this can be tested by the Indie with fuel pressure test being carried out - about 5 mins to connect to the fuel rail and see what pressure is generated.

Good luck

Need to find a short name for your good self, like MBCT or something like!!

I was one of the mobilo techs for merc when the first 642 lumps come out and the crank sensors where dropping like flys, the first thing the owner would report was ESP on the dash before the car cut out, a short test would show L5 crank sensor and no comms with ESP!

It then became a recall, and then we started changing the already replaced CPS with the new part number one!

These now seem to have cured the cutting out fault!!

The funny thing here is the first part number for the 112 was 2728 when the cars were built, then went to 2828, now gone back to 2728!!

Dont figure!!!

 

[MB-Car-Tech]

We all make diagnosing faults too hard at times.

first get the fuel pressure tested -- simple right. a little cost involved.

There is no fuel pressure sensor on this car so would have to sit on fence with RAC suggestion.

2001 CLK - Engine Warning light being displayed ??? Are you sure its an engine warning light ??

I am sure the other guys out there will confirm but not sure these were displayed at this age ??

Second get a diagnostic scan carried out on the vehicle.

 

[Cole@MBS]

We all make diagnosing faults too hard at times.

first get the fuel pressure tested -- simple right. a little cost involved.

There is no fuel pressure sensor on this car so would have to sit on fence with RAC suggestion.

2001 CLK - Engine Warning light being displayed ??? Are you sure its an engine warning light ??

I am sure the other guys out there will confirm but not sure these were displayed at this age ??

Second get a diagnostic scan carried out on the vehicle.

The joys of trying to sort things out on line!!

Sometimes you get it right, sometimes so wrong!!!

 

[bpcc06]

just checked the light it was the yellow display defective light, which stayed on when i got it to start then went out after 3 or 4 successful starts. just turned it over ok and was fine with no warning lights