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Old 08-09-2006, 11:48 PM
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Join Date: Oct 2002
Posts: 178
Got new Bosch Voltage Regulator for 190E 2.6

From Fastlane. Man, it's not called Fastlane for no reason--they're faaaast! Thanks, Phil.

Okay, info: 1990 190E 2.6 with approximate 107k miles. The odometer broke around there. I have put 200 miles after it broke, so it's 107k. It has a Bosch alternator. Last week car experienced dimming instrument lights, car dies, wait 10 minutes or so and car starts, drive it, dies again...research in the archives tells me this could be a voltage regulator issue.

Questions: Where on the alternator is the VR located? Can I replace it from above engine bay or do I need to remove belly pan and replace from bottom? What tools? I've never done anything on my 190E, so I'd like to know what DIY skill level one needs to be in to tackle this job.

Can someone direct me to a site that shows me the steps for an oil change on a 190E? I think this site has one for a '95 E320.

Also need a site for instrument cluster removal and odomter gear change--is this an easy job? Thanks.

Edit to add: Do I need to unplug the battery when changing the VR?

Last edited by frosty; 08-10-2006 at 12:18 AM.
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Old 08-10-2006, 12:12 AM
wbain5280's Avatar
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Join Date: May 2001
Location: Northern Va.
Posts: 3,386
The voltage regulator is screwed onto the back of the alternator. Remove the two screws, pull out the VR, with integral brushes, and replace it. I can't tell you for sure about above or below so it's up to you.


Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL


Not part of the in-crowd since 1952.
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Old 08-10-2006, 12:59 AM
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Join Date: Jun 2000
Location: Saugus, CA USA
Posts: 2,035
The voltage regulator is on the back of the alternator and access is from underneath, I'm pretty sure the belly pan has to come off. It's held in with two big philips screws.

Tha hardest part in changing it was probably posting this thread
5 speed '91 190E 2.6 320,000 mi. (new car, fast, smooth as silk six, couldn't find any more Peugeots)
5 speed '85 Peugeot 505 2.5l Turbo Diesel 266,000 mi. (old car, fast for a diesel, had 2 others)
5 speed '01 Jetta V6 (new wifes car, pretty quick)
5 speed '85 Peugeot 505 2.2l Turbo Gas 197,000 mi. (wifes car, faster, sadly gone just short of 200k )
5 speed '83 Yamaha 750 Maxim 14,000 mi. (fastest)
0 speed 4' x 8' 1800 lb Harbor Freight utility trailer (only as fast as what's pulling it)
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Old 08-10-2006, 05:02 PM
Jim's500E's Avatar
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Join Date: Mar 2001
Location: Manchester, Connecticut
Posts: 1,325
I recall doing the VR on my old 190E 2.6 from the top from the passenger side; was too lazy to get under the car and pull the pan.

Either way...its super easy DIY. I didn't disconnect the battery, but probably a good idea.

Oil change is another easy the MB filter wrench (10-12$ maybe ?), you can remove the filter from the top side of the motor with a long ratchet extension... I bet you can figure out the drain plug. I'm sure the 190revolution site guys have a detailed DIY for an oil change...if you really need it.

Instrument cluster removal is also easy, you can make a pull tool out of a clothes hanger that slips in the sides of the cluster, not un-like the w124 cluster removal DIY that may be here. Gear change is easy once you expose the back of the odometer.


1992 500E
2007 CLK63
2003 Audi RS6
2001 Audi allroad
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