Quote:
Originally Posted by japmaxse
Yep You are exactly correct. Me and a mechanic were looking for about 10 min then finally found it. What a weird place, I would have never guessed that location.
The shop couldn't do the recharge because of some other problem with my coolant level, shop policy.
Anyways I fixed the problem with the coolant at home and decided to go ahead and recharge it. Now that I've located the low side yet again the fitting is to big.
Whats the deal? If this is truly a R134 AC car why doesn't the R134 recharge kit fit.
This is crazy, now I have to go back to the shop and let him figure it out.
I would love to know why Mercedes decided to make their fittings a different size other than the common R134 size. 
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The vehicle fittings are the correct size.
A common issue is with the recharge kits that are disposable = they get sloppy with their production tolerance = couplings fail to fit, or work only with great difficulty.
Question:
WHY do you think it has a low charge?
Have a great day.
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