Looking for some assistance from someone else in my field.
I have perplexing NAG1 (Mercedes car) with issues. I am a longtime member of ATRA & ATSG and they don't have an answer to my issues. I have had it to the Mercedes dealer and no help there - of course.
In a nutshell - had "gear implausible" & communication codes - which I see a lot of. I changed the contact plate retried and the comm. codes were gone. Pulled the unit and the K1 & K3 C clutches were bad and the bushing - did the overhaul. Planets were verified as right ratio.
Still have the "gear implausible" codes. Checked the computer - correct.
Any dealer tech or transmission guys (hint, hint) that have had nagging "gear implausible" codes (pun intended).
392 based 6.1 PWR heads. 3.06 Getrag, DSS 1400 HP axles
Danko Shaker Stock 6.1 intake BBK 90mm throttle body, SRT manifolds
Paramount DOMINATOR converter 4400
Supported/Re-Assembled by BFNY. Best ET 11.56 w/ 1.60 60'
6.4 Apache Heads, 6.1 SB, SRT-MAxx Cam, 6.1 Intake, 87mm TB Ported by MM, TTi Long Tubes and Mid pipes, Dyno-Max Ultra-Flow 3" Exhaust, LMI 4" CAI, Predator, BC Racing Suspension, Magnum front w/69 Cuda Grill inserts, Trufiber SRT8 hood, SLP 25% Under Drive Pulley, Zeitronix Wideband, Hotchkis Sway Bars, SPC Front/Rear Camber Kits, 3.06 GETRAG, Builder Bill Billet Stator 3200 TC, Flex-Plate & Valve Body, MTCM, Brembo brake set and Dyno Tuned by AJ Hemituner.
My transmission started acting wonkey at about 150,000 miles. I seem to remember the same thing. Also my friend with scan tool said it had a tone ring failure. Before he fixed it I found a nearly new one from a low miles 07 Daytona for $500 on ebay. Seriously, I wonder how different the MB TCU is from ours. Is it driveable now? Sorry no answers, but pm one of the transmission builders here.
Rockinsrt8's CocoBolo Pistol Grip Shifter, Gina's Orange R/T Leather Console Cover, BT pedal covers, FRI Sidewinder cam, Dynatec Headers , gutted cats , Borla125 Catback, Air Hammer,TDP - CMR tune, Pedders bushings, Police Pack Oil Cooler, SRT 8 Struts and Nivo's ,Hotchkis sway bars, 260,000 miles, 20" CSRT8 Forged Alcoas, 275/40/20 Ventus ST's , 1/8th mile 7.707 sec /90.19 mph -- 05 QC4X4 Ram 185,000 mi . Never Trust a Fart
not sure how MB calculates proper gear/mph ratios but if it's anything like LXs, tire size could affect it.
talk to bill at paramount....i think i read in a benz forum where he was doing some work for benz owner...i maybe wrong...but if he know the lx nag...then he know the benz nag...
07 Steel Blue...faster than you!...shooting for a 10.0 next time out to the track...
Thanks for all the suggestions. I am working on getting a hold of Bill now.
This one is just very perplexing so I figured I would throw it out there.
ATSG and I have been in daily contact & I am now leaning towards a CAN Bus communication problem.
Going to another Mercedes tech here in town on Monday. Thanks for all the input. Just trying to explore all avenues for a fix on this thing, it's driving me nuts.
Monday. Got it. Talk to you then, thanks.