2003 C200

[chewye16]

Hi, just first wanted to say ive found this forum to be one of the best around...

sorry to burden you with my problems but i have just bought a 2003 C200 kompressor auto se

a few things....

1) i havent got a fuse guide just wondering if anyone has it...
2) when i lock or open my car, the boot opens
3) when i drive the boot sensor constanly flashes that its open but i make sure that its closed.
and 4) my sky roof, radio, electric seats a/c are not working, my lights work and so does my electric windows just not the rest...

if anyone could help that would be great...thanks for takin your time out to read my problems...

chu

 

[colechelle]

wow,and i fault i had problems, boot runs throu rear sam, locking run thro rear sam, radio and seats run thro dash sam and ac thro front sam, now i would guess you have a CAN fault, really need some fault codes!!!! somebody here would probley have some more thoughts and help!!

 

[chewye16]

thanks for tryin to help, but that absoultly made no sense to me lol!

i will check it out tho, thanks again!!!

if anyone else has any idea please help me out! thanks

 

[colechelle]

sorry to confuse, CAN BUS, two wires which use binary to talk to each other, every control unit has to be in contact via the EIS, ign switch, what i was trying to say was that the main control boxes on you car which are linked on the can bus are no longer talking to each other, hence you need a short test to see where the fault has happened, its even worse when your trying to trace fault !!!!!

 

[chewye16]

would i be right in sayin to get fault codes, i would have to go to mercedes and get them to run a diagonistic?!?

 

[colechelle]

or a good indi with a star machine, there a few good ones out there, where abouts are you, someone will point you right!!!! if you anywhere near south coast got just the man!!!

 

[chewye16]

an indi with a star machine, sounds like im about to go on a quest or something lol! im based in london? know anywhere?!? also how much does this usually cost?

p.s once again thanks for ur help

 

[television]

What is a CAN well its not the kan kan

Our cars have ECU's that need to talk to each other, one says im OK and on to the next one, its a form of networking called a CAN and it consist of 2 data lines one high sped and one low speed.

A SAM is a ECU that take information from other ECU's in the car and each SAM has its own network. So you say have 6 items connected, the CAN is done by a pair of twisted wires terminated by 2 x 120 Ω resistors, this gives a reading of 60Ω

lets take an audio one you have the

main head unit
CD player
Bose amp
telephone
TV
So these 5 items are connected in one circuit and all of the CAN connectors are in one ring
So you have a fault in the CD. Plugging into STAR it can see what unit has failed as no information from the CAN has come up. In some cases an ECU with a problem can take the whole CAN network down with it, in this case it would say "cannot communicate with Comand" so you just unplug the CAN plug from each item in the ring until it does.
A simple Ω meter will do.

I know as clear as mud

 

[whitenemesis]

If you have just bought the car would you not be better going back to the seller? Assuming it was purchased from a garage they should fix under warranty?

 

[chewye16]

i had bough the car knowing of these problems was hopin that it was gonna be a simple fix, but obvisouly i was over optimistic, just wanted to say thanks for everyones feedback, i suppose i'll just have to take it to an auto electircian or a garage!!!

 

[whitenemesis]

Sorry if I sounded abrupt :Oops: It wasn't my intention. But you do have a bit of a list. Not for the novice DIY'er :|

 

[colechelle]

What is a CAN well its not the kan kan

Our cars have ECU's that need to talk to each other, one says im OK and on to the next one, its a form of networking called a CAN and it consist of 2 data lines one high sped and one low speed.

A SAM is a ECU that take information from other ECU's in the car and each SAM has its own network. So you say have 6 items connected, the CAN is done by a pair of twisted wires terminated by 2 x 120 Ω resistors, this gives a reading of 60Ω

lets take an audio one you have the

main head unit
CD player
Bose amp
telephone
TV
So these 5 items are connected in one circuit and all of the CAN connectors are in one ring
So you have a fault in the CD. Plugging into STAR it can see what unit has failed as no information from the CAN has come up. In some cases an ECU with a problem can take the whole CAN network down with it, in this case it would say "cannot communicate with Comand" so you just unplug the CAN plug from each item in the ring until it does.
A simple Ω meter will do.

I know as clear as mud

Nice one malcolm, was trying to keep it simple, but good clear write up that!!!