My REST Remains On All The Time And Won't Go Off Until The Battery In Drained. WHAT IS CAUSING THIS? HOW DO I RESOLVE IT? IS This On A Separate Fuse Circuit?

Programming issue in the A/C controller. MB issued bulletin back in 1994.

Replacing the controller is the only fix.

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Thank You Very Much. Mb Doc You Are The Man!!!!!!! No Mb People Are Up On That Service Bulletin. I Have Been Try To Get An Answer For A Year.

Mcj

I guess you could switch the power supply & eliminate the system UNLESS you live in a HOT climate.

The SI was number MBNA 83/48 dated April 1993. Can e-mail you a copy if you want it!

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

PLEASE E-MAIL ME A COPY OF THAT SERVICE BULLETIN mraudit@peoplepc.com

McJ

same car 300SE. ALL FUSES HAVE BEEN REMOVED AND BATTERY IS STILL DRAINING VERY FAST. WHAT COULD BE CAUSING THAT?

You've probably already removed the positive cable from the battery and checked for a short to ground, I'm guessing?

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1993 190E 2.6 135k
1989 Ford Thunderbird SC 5 Spd 79K

Thank M.b. Doc. I Am A Retired Guy I Don't Have $1,100.00 In The Middle Of The Month To Replace The A/c Controller. I Am Using The Following Work Around. When I Park My Car For The Night I Take Out Fuse # 18 That Stops The Electrical Drain. I Put The Fuse Back In When I Drive.

Mcj