Control Assembly: Service and Repair

Removing and Installing Heating and Air Conditioning Control





NOTE: Use Special Tool V 160 (this code also is the Part No.) to remove the heating and air conditioning control.

Supplier: Matra Werke GmbH
Dieselstrasse 30 - 40
D-60314 Frankfurt




1. Insert and engage Special Tool in cutout provided in the heating and air conditioning control.
2. Push out heating and air conditioning control manually from below towards the rear.
3. Disengage 25-pin and 35-pin connector.

Wiring Modification When Replacing Regulator

NOTE: On vehicles prior to Model '91 the heater A/C unit wiring loom must be modified if a new heating/air conditioning regulator with index O1 is fitted. A jumper that connects pin 19 of connector G to pin 1 must be fitted.





NOTE: The connector housing consists of 2 sections. With the connector housing clipped together, the connectors are protected additionally (apart from the protection offered by the retaining lug) against being pressed out.

1. Pull connector G (35-pin) apart.





2. Disengage connector terminal G 19.
3. Cut off connector terminal and reconnect along with a second cable - cross-section 0.75 sq mm, length approx. 60 mm.





4. Engage connector terminals into G 19 and G 1.
5. Clip connector housing together.

NOTE: If the jumper is missing, a fault (Fault Code 46 and 47) on the missing left-hand rear blower is detected and the left-hand heater blower will therefore operate at reduced speed while the heater is on.