e320 fan regulator problems???

[prostreethotrod]

i have a 1996 e320 that's having a fan problem, i set the fan speeds up and down and nothing seems to happen, i can feel the heat but the fan motor is not engaging or blowing heat/air...regulator problem - fan motor problem or both??? i read something about a regulator for a 140 will fix it...

thx roger

[Matt L]

Very likely the regulator. You can try disconnecting the regulator and applying 12V directly to the fan motor to test it.

If the motor is bad, you'll have to find a good used one, or update all of the parts. If the regulator is bad (and you think your motor will keep functioning), you can adapt the a 140 regulator.

[david s poole]

unfortunately you have the dreaded 96/97 210 body.you need to replace both the blower and the regulator.about $800 for parts.

[TMAllison]

As mattl pointed out there is a retrofit you can perfrom.

My reg gives me problems occasionally, not enough that I am willing to change it at this point.

I find turning the ingition off and on again results in the reg working again usually. At some point this will no longer work and I'll be replacing everything.

[Arthur Dalton]

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..you may want to check the ignition switch.

[TMAllison]

Originally Posted by Arthur Dalton

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..you may want to check the ignition switch.

When the fault occurs my symptoms are the same as prostreethotrod's. I also get a screwy test mode (#9?) voltage reported by the Climate control display when this occurs.

I would rather r&r the ignition switch than do the fan/reg assembly.

How/what would one be testing the ignition for?

[prostreethotrod]

i tried the on/off with the key and that work, are these cars notorious for electrical problems??