No Climate control functions W126 Please help

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Keyser Soze - 03 Jun 2006 18:23 GMT

Hi. We are parting out a W126 and sold a climate control unit to a gentleman
on eBay. It was functioning when we removed it. The customer installed it
and still has no blower, no AC clutch engaging, no AC, no heat, it's just
dead. He said he checked the fuse and it's OK too.

Anyone have any suggestions?

Reply to this Message

Tiger - 04 Jun 2006 00:04 GMT

I think it is obvious that he had a bigger problem that has nothing to do
with the climate control unit. First of all, no blower... ask him to turn
unit on... EC or AC... and set fan speed to high. Then under the passenger
side dash... give it a whack... if fan comes on, then fan motor is bad. If
fan doesn't come on... then have him check the fan fuse... take them out and
inspect it... and put a new one in.

Don't just look while in place... look is very decieving.

Reply to this Message

Keyser Soze - 09 Jun 2006 17:35 GMT

>I think it is obvious that he had a bigger problem that has nothing to do
>with the climate control unit. First of all, no blower... ask him to turn
[quoted text clipped - 4 lines]
>
> Don't just look while in place... look is very decieving.

Thanks for your input. I passed it along. He is buying a AC relay and thinks
that will solve his problems.

Reply to this Message

Wan-ning Tan - 04 Jun 2006 05:26 GMT

Different model year may use slightly different climate control unit.
At least on W201, the later years even have more pins on the connectors.

BTW, what year/model/color is your W126? I may be interested in some
parts, mostly interior. TIA

> Hi. We are parting out a W126 and sold a climate control unit to a gentleman
> on eBay. It was functioning when we removed it. The customer installed it
> and still has no blower, no AC clutch engaging, no AC, no heat, it's just
> dead. He said he checked the fuse and it's OK too.
>
> Anyone have any suggestions?

Reply to this Message

Keyser Soze - 04 Jun 2006 15:08 GMT

> Different model year may use slightly different climate control unit. At
> least on W201, the later years even have more pins on the connectors.
>
> BTW, what year/model/color is your W126? I may be interested in some
> parts, mostly interior. TIA

The car he has is a 91 420sel. The part we supplied is from a 87 420. The
interior is tan (palomino). The exterior is black. We purchased it as a
parts car to cannibalize for our damaged 89 420.

The car is in northern NJ.
Thanks.

Reply to this Message