1985 300SD where exactly is the resistor pack located for the HVAC system blower motor?
I searched here and otherwise and found "under the blower cover" I've had the blower out and see nothing up there remotely similar to the replacement resistor. "The black box under the bonnet". Right. Where exactly? And finally "under the brake booster". Again nothing under here looks like the replacement part.
Thank you for your time and understanding

__________________
I don't know the same things that you don't know.

Shayne

85 W126 SD OM617.951
87 409D 650S OM617.913
93 E34 Touring M50B25TU
02 E46 Sport M54B30TU

Read this thread for the location.

Warning: all W126 owners.
http://www.peachparts.com/shopforum/showthread.php?t=118285



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ASE Master Mechanic
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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.
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1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

On the Gen2 cars there is a solid state voltage regulator in the blower box. Gen1 cars like yours have the resistor pack under the brake booster.

-J

__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.