Ok,this morning as temps drop to freezing the drive into town with
the teenager became interesting since on the left side of the wagon
it vented fresh outside
freezing air, on the right side, hotish air. Turning the dial on left
to almost max made it a bit warmer, click to high and you get
Now you know why phones and cars don't mix.
And especially why 90's and later MBZ and the monkeys who work for
phone/stereo stores don't mix.
First running the dial on the right side 5-7C colder (seems) to
regulate things a bit.
So I wired up some benz pins/sockets, after doing the relays for my
500E headlights I've a few wires and pins about.
Check for connectivity, then cross connected the two solenoids. The
hot air then
Ocsillating temp is usually caused by a bad temp sensor blower, so that
the cabin air isn't being pulled past the sensor -- car has to be
pretty warm before the sensor heats up, then gets pretty cold before it
cools off.
I'm not familiar with the dual control system, but I'd bet you have two
John M McIntosh wrote:
Now that cold weather as set in I've been chasing a gremlin in the
climate control.
First this 90's wagon has manual fan speed/vent control with dual
temp controls.
It slowly cycles between blowing mid temp, to hot, then to cold when
you've set things to say 20c
On 6-Nov-05, at 4:24 PM, Marshall Booth wrote:
The manual climate control system is unlike ANYTHING that's documented
in the US manuals. From you description, It's not like my Euro 201
either.
See if you can find someone on the Continent (like Richard Becker)
that
has the diagnostics of
So it appears that right side is heating up, so it could be dual-
valve is weak on one side, or is the control unit flaky?
Mmmm I wonder if I can swap the female connectors or reverse the
connector. That would tell me if the control unit signal
is flake if the swap alters the behaviour from
Yes, in reading on the UK benz boards there appears to be 2 heater
core temp sensors, and one interior sensor in the head lamp.
Tomorrow with some wire I'll swap feeds to the duo-valve assembly and
see if the heating issue follows.
If it swaps sides then either the temp sensor on the right
Now that cold weather as set in I've been chasing a gremlin in the
climate control.
First this 90's wagon has manual fan speed/vent control with dual
temp controls.
It slowly cycles between blowing mid temp, to hot, then to cold when
you've set things to say 20c
I replaced the interior
