DLax

Hello, all

2003 CL600 throwing P0120 (throttle position sensor); dash display reads ESP and Distronic errors (white, not red); check engine light is intermittent, and car is in limp mode. Have replaced throttle pedal assembly, passenger coil pack (found a cracked coil), and plugs. Found oil around some of the plugs, and at 39K mi they looked like they had 139K miles on them...ugly. Also spotted a vac hose with a hole, and had a cracked nipple on the air sensor closest to the throttle body.

Car also idles rough occasionally...have checked fuses and relays for all the above-named suspects...even going under rear seat on driver's side. I'm confused because the idle makes me think the issue is mechanical in nature...but the car behaves differently when my OBDII scanner is connected. Any ideas, please and thanks...?

Plutoe

Hey bro you can wait for the HS(run around checking plugs wires fuses water in the trunk old wiring bad EUC faulty headlamps headliner in disrepair) or get a factory or equal scan to baseline and interrogate the system to determine your problems. Then you can spend your weekends fixing the faults

DLax

Thanks; I get it. In looking for STAR tools, the systems seem to be "all over the place" in terms of pricing, etc. Appreciate a lead on a solid system; have been searching threads but not seeing clear consensus. In the interim, I was also (naively, apparently) hopeful that someone else may have had this odd confluence of errors. Appreciate your response, Plutoe.

pmercury

iTrader: (2)

you have to get a Xentry DAS
without that you will spend money scanning with these idiots at MB dealer garage
and probably never find

just get a C4 sdconnect (C5 is not confirmed as real yet)

from aliexpress

get yourself a dell D630
go to specialised software sites like MHH AUTO, CarTechnoloGY ect
then download a all ready Acronis image of a Xentry 2015 version or 2014 or what you want
clone the image to your laptop's SSD
there you go
all for free

or, buy a Ching Chong ready Dell D630 drive with your C4 package
or a whole ready D630 laptop with your package

DLax

pmercury, thank you so much for the leads...am on it