500SEL (126.037) V8-5.0L (117.963) (1984)
Hydraulic Assembly: Technical Service Bulletins
ASR II - New Version Charging Pump
TO:
OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE:
February 1991
SUBJECT:
ALL MODELS ASR 11 CHARGING PUMP MODIFIED
REF. NO.
42/119
Figure 1
As of August 1990 production, a modified ASR charging pump (M15) is installed. It can also be installed in earlier production vehicles (Service
Microfiche Job No. 42-863*) in case of leaks at the connection BA (Figure 1).
Following an installation of the new version pump, only bleed it at the vent screw SP (see Service Microfiche Job No. 42-860*.
Note:
For a limited period of time, the modified pump will be marked on the connector (arrow) with a white dot (Figure 1). The part number was not
changed.
*Presently shown only for Model 129
In Case of Warranty
Time Allowance
Operation Number Description
Time/Model
02-4231
ASR 11 Charging pump, Repl./Bleed
0.8 hr. / 82/83/85/88/90
02-4233
ASR 11 Charging pump, Repl./Bleed
0.9 hr. / 47/71/72/73/74/75
Damage Code
Code
Description
43172**
ASR Charging pump, leaking