HELP. Few problems with mates C220 cdi

[kurtdaley]

Hi there my friend has a few problems with his car, it is a 2002 C220 cdi.

It has had a recon fuel jet (air flow meter/ or the diesel equivalent) and since then the MPG has suffered.
Previous, around town was 39mpg now 29-31mpg.
Motorway 49-51mpg now 39ish.

He said is it worth having it re-mapped? Would this help?

Another problem is the radio has stopped working, it keeps making a slight clicking noise every minute or so, but wont light up and work.
Is there a fuse in the back of these?

Finally the button to open the boot doesn't work, it makes a noise like it is working, but doesn't open.
Could this be the opening mechanism and any ideas hiow much they are?

Last but not least, how much would a set of front discs and pads be for this car?

Would getting it on star diagnostics help?

Thanks as always for any replies, I always appreciate your help on here.
All the best Kurt

 

[JOB-BLACK-RAT]

Yeah, you gotta ove the electrics on the C class

Everyone was real helpful telling me to avoid pre 03 models AFTER I broight it

 

[kurtdaley]

Yeah, you gotta ove the electrics on the C class

Everyone was real helpful telling me to avoid pre 03 models AFTER I broight it

He's had it for a few years with no problems, now it's just these niggly little bits need sorting.

 

[rpe2]

Re the mpg, does the engine get hot? It should be 80c+, if it doesn't get past 60c, suspect thermostat

 

[kurtdaley]

Re the mpg, does the engine get hot? It should be 80c+, if it doesn't get past 60c, suspect thermostat

Cheers, I will ask him.
Would the thermostat affect the mpg?
Thanks Kurt

 

[kwakdonut]

Cheers, I will ask him.
Would the thermostat affect the mpg?
Thanks Kurt

In a word, yes!

A second hand/recon MAF is probably not the best idea either.

Best way is to get the car on STAR first to see if the MAF is working correctly.

 

[p1nny]

those mpg figures are what i get in my C220 CDI all the time! its been looked at by merc 3 times to no avail and they say its normal. ha

 

[kurtdaley]

Cheers for the replies, any ideas on the radio?

 

[kwakdonut]

Probably worth talking to Alfie at Welcome to www.comand.co.uk about the stereo problem