Engine Block Heater - Installation Instructions
TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERSDate: March 1992
Ref. No. MBNA 20/13
SUBJECT:
MODEL 140.057 (600 SEL)
SUBSEQUENT INSTALLATION OF ENGINE BLOCK HEATER
An engine block heater is now available for the above-listed model. The Work Instructions no. 276 describe the installation of the block heater.
Note:
Customers should be advised that installation of a block heater in this model is at the customer's expense.
Work Instructions
Group: 20
Number: 276
SUBJECT:
MODEL 140.057 (600 SEL)
SUBSEQUENT INSTALLATION OF ENGINE BLOCK HEATER
1. Disconnect and cover battery negative terminal.
2. Lift vehicle.
3. Remove front and rear encapsulation panel from below engine.
4. Remove starter.
5. Drain engine coolant by first attaching a 14 mm inner diameter, 1600 mm long hose to the drain plug in the engine block and then loosening the plug. Drain coolant into a suitable container for reuse later.
6. Remove core plug (on right side of crankcase near cylinder no. 6) with a 22 mm 6-point socket (arrow, Figure 1).
7. Install block heater (arrow, Figure 2) using rubber 0-ring from the installation kit and not the alloy washer supplied. Tighten block heater with a 46 mm socket.
Tightening torque: 70 Nm
8. Attach electrical cable to block heater.
9. Reinstall starter.
10. Route cable forward along transmission oil cooler line using cable ties (arrow, Figure 3).
11. Continue routing the cable, using cable ties, over lower radiator hose.
12. Open towing eye flap in bumper cover. Route cable forward through opening for towing eye flap.
13. Insert cable plug through slot in towing eye flap and reinstall towing eye flap in bumper cover (Figure 4)
14. The cable may now be easily accessed for winter use or alternately reinserted through the slot in the towing eye flap for storage when not needed (Figure 5).
15. Close coolant drain plug.
Tightening torque: 30 Nm
16. Reinstall encapsulation panels.
17. Reconnect battery.
18. Test coolant for sufficient antifreeze protection, refill and bleed cooling system. Pressure test system for leaks.
Run engine. Check for proper coolant level.
Parts Information
Recommended Labor Time
Operation:
Block heater and electrical cable, subsequent installation
Operation Number Time Model
20-5480 2.1 hrs. A4
Note:
The subsequent installation of a block heater in this model is at the customer's expense.
Additional time for "Engine compartment panel(s) - bottom, R & R" (see Time Guide microfiche, group no. 61) may be applied, provided it is not already included in another repair or maintenance service with the same repair date.