Mk2 1.9tdi No Heating

[ronz]

Hi, I know this question might have been asked 100 times but can't find answer. I have no heating at all. Aux hasn't worked for a while, other heating stopped at beginning of winter. Car doesn't overheat. Any solutions much appreciated.

[chrispb123456]

Hi, I know this question might have been asked 100 times but can't find answer. I have no heating at all. Aux hasn't worked for a while, other heating stopped at beginning of winter. Car doesn't overheat. Any solutions much appreciated.

Possibilities for front (main) heater

 

Sheared water pump impellor

 

Blocked heater matrix(s)

 

Thermostat

 

Head gasket failure (pumping air into system)

 

Air doors/motors.

 

Possibilities for rear compartment heater.

 

As above + Electric circulating pump (run on pump)

 

 

Booster heater best diagnosed with Vagcom, likely glow plug.

[ronz]

Hi,

 

Changed stat, although nothing was wrong with it, the pump is fine i felt the impeler when I changed the stat and was solid.

 

I think the auxilary heater is working now, I dismatled the run-on pump and the bushes were worn. I get heat to start with but it soon goes cold when the temp hits 90 degrees.

 

I think the blocked heater matrix is right. I really would be so appreciative if anyone can show me photos of where these things are, I just can't find it for the life of me. I read somewhere there is a front and back one, photos would be really appreciated, also any advice how to go about doing it would be great.

 

Do I have to empty all the coolant again?

 

with VAG I get...

 

Address 08: Auto HVAC Labels: 7M3-907-040.lbl

Part No: 7M5 907 040 D

Component: CLIMATRONIC MPV GP 0003

Coding: 00010

Shop #: WSC 00020

VCID: 3163E91DD1AF

 

1 Fault Found:

01184 - Rear Vent Outlet Temperature Sensor (G174)

30-00 - Open or Short to Plus

 

 

Thank you in advance.