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Hello, gutted the DPF a few months ago. Ran fine up until a week ago. Out of the blue, I lost acceleration. ML pulls out of driveway, accelerates a little but when I press the accelerator to the floor it wont go past 3,000-4,000 RPM. Husband removed the DPF and blew compressed air through the lines that the DPF sensor connects to, black soot came out. The DPF is still hollow. I replaced the DPF pressure senson, air filters, fuel filter. I will post pictures of the codes my OBD2 is pulling up. I also noticed in the diagnostic section on the reader the EGR read 0 (will post picture). Removed the EGR last night and I am cleaning it now. I pulled off the turbo actuator a few days ago and all wires look intact. What am I missing? I cant figure out why its not accelerating and I dont know what to check next if cleaning the EGR doesnt fix it? Any help or advice would be so greatly appreciated!
This is my husbands OBD2 Reader. This particular reader is not designed specifically for Mercedes. I thought the P = Powertrain and the codes were pretty generic. I understand I'm not receiving true Mercedes codes. Can these codes not pinpoint a problem area?
Think I figured it out... Turbo Actuator. I noticed when I turned my car on I could hear the sound but the actuator was not moving (I saw a tiny jerk like it was trying to move). Contacted Alec (www.turboactuatorrepair.com), extremly helpful and honest gentleman! Removed the unit, took pictures and emailed them to him. Nothing appears to be wrong with the gears or the circut board. So, with it being a holiday weekend (husband's out of town and I'm stuck at home with a non working vehicle).... I'm tempted to buy an actuator off Amazon, prime shipping will have it delivered Monday. Hopefully I can mail my actuator to Alec Monday morning and cross my fingers that the one from Amazon works. Has anyone purchased one from Amazon or Ebay? I figure worst case senario, if it doesnt work I can call Amazon to set a return/refund up. Contacted the Malone authorized dealer in Dallas to inquire more information about the tune... hoping to get my car to them in the next 1-2 weeks.
If I can get this problem solved, next up is solving another oil leak (I think its the PCV valve and the gasket that sits between the oil filter housing/engine block.) If anyone has any feedback on purchasing an actuator off Amazon or Ebay feedback would be awesome! Thanks!
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
