The dealership did a diagnostic and told me i need a blower regulator and a new acc pushbutton unit. His price for parts & 5 hrs labor is $1460.21. I know that a rebuilt acc runs about $275 and is "plug and play". Looking at the repair manual, the replacement instructions for the blower regulator are pretty straightforward so i think i can do it myself. I see a regulator offered on ebay from a 92 300E and the part number is bosch #124 820 27 10. Does anyone know if this is the correct part number for me? Also see a 87 SDL regulator is available. Would this fit??




darkman
87 300D 191k

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1987 Mercedes Benz 300D Turbo
Part: Blower Regulator

R2022-27160 Blower Regulator Germany IN STOCK
http://catalog.peachparts.com/item.wws?sku=R2022-27160

Questions about Parts?
Call for help

__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

thanks for the quick and helpful response.



K. Darkman
1987 300D 191k

My indy put in a used blower reg. for $50.00. I put in a rebuilt ACC push button unit which I got from benz-store.com for $155.00. Both jobs are easy.

__________________
Paul 1987 300 SDL; 2000 ML; '69 MGB; '68 VW Fastback

Paul, thanks for letting me know i'm on the right track with this DIY. The price for your ACC unit is much less than the best price I had found. I'm going to the site you referred to now. Thanks again.

Darkman
87 300D 191k

That estimate seems ridiculous to me ... my Indy replaced my blower motor and regulator for around $600.

If you can't find a regulator, I still have the one that he pulled out of mine. It may work. The blower motor was shot, and we decided he might as well replace the regulator while he was in there, since it was 18 years old and possibly contributing to the malfunction ... but it wasn't definatively busted. Let me know if you want to try it as a last-ditch resort ...

__________________
1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)