'06 CLS500 Potential Purchase - Help! - Mercedes-Benz Forum
 
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post #1 of 4 (permalink) Old 03-04-2019, 07:43 AM Thread Starter
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Question '06 CLS500 Potential Purchase - Help!

I am looking at a 2006 CLS500. Has approx. 75000miles and is super clean. I have a couple of questions.

I have researched and discovered a whole soap opera regarding the famous or infamous 722.9 7speed transmission, so the purchase price may have to come way down to deal with that potential can-of-worms. But I have another question.

I decoded the VIN and found this: "A29 J - VALVE BODY ASSEMBLY VGS 1 (550 NM)". Can anyone shed any light on what this might be? Just based on the English description, it looks like the valve body in the transmission, however I've seen way too many weird German>English descriptions that wound up being completely unrelated to what the thing really was.

Any and all help, warnings, suggestions, ideas and especial humor, greatly appreciated.

Thanks,
Mike
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post #2 of 4 (permalink) Old 03-04-2019, 08:13 AM
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VGS1 is just the version of the Valve Body/Conductor plat combination in the transmission. Some issues you may have with this transmission include excessively dirty fluid, a noisy fluid pump, and faulty speed sensors on the conductor plate. The cure for dirty fluid is simply to change the fluid and filter every 40K miles. This is a slightly more involved process than on prior model transmissions as it has to be filled and the level checked from underneath via the drain hole. Most people just ignore the fluid pump if it gets noisy. It's usually not a problem, just a noise, sort of like belt whine. The faulty speed sensors will require that the conductor plate be replaced. Since the conductor plate also contains the TCU, and the TCU is part of the anti-theft system, it requires special "SCN" coding that can mostly only be done by a licensed dealer. Generally, this costs about $1500. However, with VGS1, it also requires replacing the valve body to be replaced as well, which I think doubles the price. You might consider taking it to a dealer for a pre-purchase inspection, and while there, ask if the transmission has ever been serviced and if the conductor plate was replaced to fix bad speed sensors (if so, it is a permanent fix - if not, you'll be paying for it eventually).

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post #3 of 4 (permalink) Old 03-05-2019, 06:22 AM Thread Starter
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Thank you for your response.

I have decided against the purchase. The seller wanted too much money and based on the potential repair costs down the road, it seemed a bit too much.

I will keep an eye out for one whose transmission has already been upgraded/repaired or with a more reasonable price.

Thank you again,

Mike
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post #4 of 4 (permalink) Old 03-05-2019, 06:49 AM
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The MY2008 and later transmissions tend to be more reliable.

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