Remove/Install Radiator

Installation dimensions for radiator,fan and fan shroud













Installation dimensions for radiator and radiator air-cooler














a = 42 mm

NOTE: As of the end of May 1982, a radiator with a core depth (a) of 42 mm(previously 34 mm) has been installed in the sedans and since the beginning of August 1982 into the coupes.
On models 126.043/044 with air conditioner or automatic climate control, a modified condenser is installed for space reasons.

Production breakpoint: As of May 1982
Model as of chassis end No.
126.032/033 031420
126.336/037 021577
126.043 003564
126.044 002838

Modified condenser (2nd version):

Previous condenser (1st version):

The modified radiator can also be installed in vehicles with lower chassis end No. On models 126.043/044 with air conditioner or automatic climate control only in connection with the modified condenser (2nd version).

As of the end of August 1984, a radiator (core depth 42 mm) with improved cooling capacity (66 cooling tubes) (previously 44 cooling tubes) is being installed on vehicles with energy concept. The distance from cooling tube to cooling tube is 10 mm (was 15 mm).

This radiator can also be installed in previously fabricated vehicles with energy concept.

In models 126.043/044 with air conditioner or automatic climate control up to May 1982, a modified condenser must be installed at the same time for space reasons.

Production breakpoint (radiator with 66 cooling tubes)
Model As of chassis end No.
126 093 902


Removal:
1 Drain coolant. Loosen coolant hoses on radiator and pull off. Service and Repair
2 Disconnect gear oil and lube oil hoses and unscrew from radiator or air-oil cooler. Drain lube oil from air-oil cooler.
3 Close open connections of oil hoses as well as connections on radiator and cooler by means of plastic plug.
Model 107, proceed with step 4.
Model 126, skip to step 7.

Model 107 (steps 4 - 6)





4 Unscrew fan shroud at the top, pull out of retaining brackets below and place on the fan.
5 Push holding springs in the direction of the arrow and remove.
6 Remove radiator.

Model 126 (steps 7-10)





7 Pull the two flat shaped springs (arrows) out of the fan shroud in an upward direction.





8 Lift the fan shroud out of the lower brackets (arrows) and place on the fan.





9 Pull off both flat shaped springs (arrows) in an upward direction.
10 Lift out radiator.

Installation:
11 For installing proceed vice versa.

During installation, tighten coupling nuts of lube oil hoses on the air oil cooler to 25 Nm, the coupling nuts of the gear oil hoses on the radiator to 15 Nm and the fastening screws for the fan shroud to the radiator to 2.5 Nm. Counterhold when tightening the coupling nuts.

Pay attention to the specified distances of fan in relation to radiator and fan shroud.

12 After filling in coolant, check cooling system for leaks by pressure-testing with tester (1.0 to 1.3 bar gauge pressure).