Air Bag - SRS Indicator Lamp Flickers or Stays On

87mercedes03

TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS

DATE: March 1987 REF. NO. MBNA 91/9


SUBJECT: ENERGY ACCUMULATOR CORROSION (SRS INDICATOR LAMP FLICKERS OR STAYS ON) MODEL 107 AS OF MODEL YEAR 1985


As of mid-September 1986 production the energy accumulator is now installed with the connector facing downward. Door and soft top lid seals are more thoroughly inspected to verify proper installation.

Damaged door and soft top lid seals can allow water to enter the soft top well compartment. Water can then drip onto the energy accumulator and connector, causing corrosion.


Effective Serial


Model As of Chassis End


107 A 056949


In case of customer complaints of the SRS indicator lamp staying on in vehicles with lower chassis end numbers, AND THE SRS TEST (91-700) indicates that the energy accumulator is malfunctioning, perform the procedure on the following page.

FIGURE 1:

Procedure

Warning! Observe all SRS related
safety precautions.

1. Turn steering lock to position "O", disconnect and cover the battery negative terminal.

2. Disconnect red 10-pin connector located on the park brake support (left under dash panel, must first be removed).

3. Remove left rear interior panel to access the energy accumulator.

4. Disconnect and remove the energy accumulator (arrow, Figure 1).

FIGURE 2:

Note: The energy accumulator is positioned behind the voltage converter.

5. Install the new energy accumulator with the connector facing downward (similar to mounting position of voltage converter) (Figure 2).
6. Test SRS once again to assure proper function.

7. Reinstall left rear interior panel.

8. Inspect, and replace if necessary, the upper rear corner door seal (arrow, Figure 3) and the soft top lid seal.

9. Inspect, refasten or replace any damaged seals that could allow water to enter the soft top well compartment.



Special Tool Information