560SEC (126.045) V8-5.6L (117.968) (1989)
Drive Belt Tensioner: Technical Service Bulletins
A/C Compressor Tensioner Pulley - Special Tool
REF. NO. 13/12, 58/62
To: OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE: June 1987
SUBJECT:
SPECIAL TOOL FOR A/C COMPRESSOR TENSIONING PULLEY
ENGINES 116/117
The tensioning pulley mounting arm is now secured to the crankshaft housing with a hex. socket head bolt instead of the previous hex. head bolt. The
hex. socket head bolt can only be loosened/tightened with special tool 117 589 03 07 00 (this is especially important when adjusting the tension of the
belt, Figure 1).
Other tools may damage the crankshaft pulley (alternator V-belt), which will eventually damage the V-belt.
Special Tool Information