64 12 160 Removing and Installing/Replacing Complete Independent Heater With Bracket

64 12 160 Removing And Installing Or Replacing Complete Independent Heater With Bracket

Special tools required:







WARNING:
Scalding hazard.
Work on independent heating may only be carried out when it has cooled down.







Recycling
Fuel escapes when fuel lines are detached. Have a suitable collecting container ready.
Catch and dispose of escaping fuel.
Observe country-specific wastedisposal regulations.







Necessary preliminary tasks:
- Remove left underbody panelling







Disconnect plug connection (1).
Release hose clamp (2) and detach fuel line.
Release screw (3).
Tightening torque 64 12 2AZ.







IMPORTANT: Secure heater (3) against falling out.

Disconnect coolant hoses (1) with special tool 13 3 010.
Release hose clamps (2) and detach coolant hoses (1).
Release nuts (4) and unclip associated hoses from holder (5).
Remove heater (3) and set down on a suitable surface.







Release hose clamp (1) and remove complete heater (2) with bracket.







Replacement:
Modify muffler.
Release hose clamp (1) and detach coolant hose.
Release screw (2).
Tightening torque 64 12 3AZ.
Disconnect plug connection (3) and remove auxiliary water pump (4).

Installation:
Check coolant hoses for damage and replace if necessary.







Release screws (1) and remove heater from bracket (2).
Tightening torque 64 12 4AZ.







After installation:
- Vent cooling system