joelowwatt

I have a 2003 CL600 w/ RENN Tech ECU,TCU tune 625 HP 745 tq. Original spec as follows:

Model designation:

Modell
Anzahl Verzeichnis Anmerkung
CL 600
215.376
- Datacard -

 Identification number: WDB2153761A033104 7VIN: WDBPJ76J83A033104Leading aggregate:
Chassis

Sales designation: CL 600 [MODEL_IDX = 0]
Order number: 0 3 706 88299
Delivery date: 13 11 2002
Market: NA,North America
Production order: N
Paint code 1:040U - BLACK
Paint code 2:
Paint code 3:
Paint code 4:
Paint code 5:
Equipment:571A - ANTHRACITE EXCLUSIVE LEATHER
Engine no.:275950 40 001561
Transmission:722649 04 060094 [transmissionType = GA]
Steering:
Front axle 1:
Rear axle 1:
Rear axle 2:
Battery 1:
Battery 2:
Battery 3:
Fuel cell 1:
Fuel cell 2:
Fuel cell 3:
Electric motor 1:
Electric motor 2:
Electric motor 3:
Electric motor 4:
SA code212B - OWNERS MANUAL AND SERVICE RECORD - AMERICAN
221B - SIGN COOLANT/REFUELING - ENGLISH
232 - GARAGE DOOR OPENER WITH 284 - 390 MHZ FREQUENCY
236B - WITHOUT CUSTOMER SERVICE - STATION INDEX
262 - PARKTRONIC SYSTEM - ELIMINATION (USA)
284 - SELECTOR LEVER, WOOD
289 - WOOD/LEATHER STEERING-WHEEL
309 - CUP HOLDER
349 - PREP. FOR EMERGENCY CALL SYSTEM
401 - DELUXE FRONT SEATS WITH VENTILATION AND HEATING CO
404 - MULTI-CONTOUR SEAT, FRONT LEFT
405 - MULTI-CONTOUR SEAT, FRONT RIGHT
435 - HEAD RESTRAINTS,REAR, PNEUMAT.FOLDING UP/DOWN
461 - INSTRUMENT WITH MILES IND. AND ENGLISH LEGEND
494 - U.S. VERSION
530 - COMAND DVD APS USA WITH NAVIGATION
540 - ROLLER BLIND, ELECTRIC, FOR REAR WINDOW
551 - ANTI-THEFT/ANTI-BREAK-IN WARNING SYSTEM
570A - EXCLUSIVE LEATHER TRIM
573 - CHILD SEAT MOUNTING, ISOFIX IN REAR
707L - UNITED STATES - TOURISTS
731 - WOOD TRIM BURRED WALNUT ROOT
7XXL - NORTH AND SOUTH AMERICA
803 - [215] - 19990607 - AEJ 02/1/2/X
803 - [722.6] - 20010316 - YOM 12/1
810 - SOUND SYSTEM
819 - CD CHANGER
820 - VEHICLES FOR TOURIST
875 - HEATED SCREEN WASH SYSTEM
986 - IDENTIFICATION NUMBER (VIN-NO.)
989 - IDENTIFICATION LABEL UNDER WINDSHIELD
M275 - V12-GASOLINE ENGINE M275 BI-TURBO
M55 - CAPACITY 5,5 LITRE
N25 - CONTROL CODE SINDELFINGEN PLANT
N29 - CONTROL CODE SINDELFINGEN PLANT
U27 - BOTTLE HOLDER
040U - BLACK
571A - ANTHRACITE EXCLUSIVE LEATHER
M275 - V12-GASOLINE ENGINE M275 BI-TURBO

Granted that might have been a little TMI but at least you know what car it is.
My issue is the transmission is making a growl when I step on it going up hills here in San Francisco. (trans mount is 8 months old) It's fine if I'm just strolling along so I figure I better get my ducks in a row because this is going to be expensive. The readout says 722.649 but everyone's part identifier widget says it's a 722.628. I would think it would be sensible to use the stronger trans with the V12tt. I'll know when I crawl under it and look. Can anyone recommend a good rebuilder in the bay area that knows the difference? Oh yeah I'm also in the middle of ABC and Coil Packs as if I didn't have enough on my plate. One option I am considering is to buy a spare and send it to Renn Tech and have them do their thing to it for like 4K but something tells me if I go to the right guy I can get the same parts installed for price of a regular rebuild. It sounds like bearings going out to me so I'm babying it for now as it's my daily driver. Any thoughts on the best rout to go with the trans? I would like to upgrade the parts to handle the extra torque.

A little history on the car. 80,000 mi. on the clock I've had it since last April I drive it 7.6 miles a day to work. It had bad nitrogen ***** on when I got it and you could not hear the trans noise. After it blew the U-turn ABC hose (AKA Pump to separation point HPE) I replaced it and the accumulators and the whining noise went away to reveal how bad the trans noise was. The trans rear mount is new. It also needs engine mounts and I know they will make noise when bad enough but this is in the transmission. Plans for the car after motor mounts, ABC, coil packs, and trans include better inter cooler, trans cooler, oil cooler, Quaife LSD, Brembo brakes and a set of staggered rims, the cup holder works, Dream car complete. the little metal shift lever is on the way from amazon too.

Thanks I hope to hear some replies.

ItalianJoe1

Looks like a base model 600, no parktronic or anything, my first one was like that, just AMG pack and nothing else. I can't do the grey interior though, gotta be black on black.

To your question, I have seen people say the front pump bearing goes out/makes noise, as you suggest a rebuild should address that. I don't know if it would only be obvious under throttle though, I don't know enough about internal transmission repairs yet to say that.

Interested to hear what you find though, as my car is similar age/mileage and also tuned, and i'm sure I will break the transmission at some point as I continue to add power and abuse the car more.

Welwynnick

These transmissions are sensitive to oil level, so the first thing to do is make sure that's right. Its not trivial. Do you have a dipstick tool? No point not having one if those.
Nick

joelowwatt

Nick, Yes just got it and it's low, dropped in a quart of Valvoline Max-life to get me by til flush time. Waiting on IR thermometer and filter should be here any day. Going with Titan 4134, filter, and connector adapter. Would it being low on fluid cause it to growl like that and it just needs more fluid? Or, is it what I think it is and it's too late for love, get ready to bend over and fork out for a trans?

Thanks for the reply
Chad

Welwynnick

Yes, too high or too low fluid does indeed cause nasty noises.

Nick

Mike450

Wrong fluid level will make the pump howl.

If fluid is low, it's got a leak. I would check trans plug mount for fluid.

tusabes

This is the electrical connector prone to leakage