My friends car is bringing up 2 throttle pedal codes (which wont clear on the snapon solus scanner) and a cam shaft hall sensor code (which does clear but keeps coming back, after cranking, with no start, somtimes the car fires/splutters but will not run.

Ive fitted a new camshaft sensor, which worked for a short while but now the car wont start again, so i decided to fit another throttle pedal, which turned up today (21/05/18) but this has made no difference, so, now im a bit stumped the only code that i thought would affect the starting, would be the cam shaft sensor an the cfrankshaft position sensor but there is no ckps code.

any suggestions are welcome and appreciated, im a mechanic but have limited knowledge on mercedes.

Thanks Dave