300TE (124.090) L6-3.0L (103.983) (1989)
Battery: Technical Service Bulletins
Maintenance Free Battery - Service/Identification
REF. NO. 54/25
TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE: December 1988
SUBJECT:
MAINTENANCE-FREE BATTERY
MODELS 124 AND 201.0
1.
IDENTIFICATION
2.
TESTING
3.
TEST SHEET
As of production 12/88, a maintenance-free battery (12 V 62 Ah manufactured by Bosch) may have at times been installed in subject vehicles. The
following text provides detailed information about identification and testing of this flew type of battery.
IMPORTANT:
Never attempt to open a battery.
NOTE:
These instructions are only valid for the maintenance-free batteries described herein.
1.
Identification
The maintenance-free battery (Figure 1) can be identified by the following:
-
It is manufactured by BOSCH.
-
It does not have cell caps.
-
Markings for electrolyte level are not preeent.
-
Filling instructions are not listed.
-
Label on battery cover stating "DO NOT ADD WATER" and "In case of service needs see your "Dealer".
-
This type battery is installed only in models 124 and 201.0 beginning 12/88.
2.
Testing
A battery capacity load test is the only test possible to determine its condition. This battery cannot be tested for specific gravity and/or electrolyte level.