300E 4MATIC (124.230) L6-3.0L (103.985) (1990)
Catalytic Converter: All Technical Service Bulletins
Catalytic Converter - Updated, Exhaust Noise
REF. NO.
MBNA 49/1
TO:
OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE:
July 1991
SUBJECT:
MODEL 124.051, M.Y. 1990/91 EXHAUST NOISE
If there are complaints of exhaust system noise between the exhaust manifold flange and rear muffler, check for exhaust leakage at the O2 sensor,
clamped joints, or any visible damage. If no problems are evident, replace the catalytic converter. On all cars when the catalytic converter is replaced
according to this S.I., mark the car with a green paint dot on the heat shield just above the exhaust pipe in the engine compartment.
Parts Information
Part Name
Part Number (New)
Part Number (Old)
Catalytic converter
124 490 95 19
124 490 76 19
In Case of Warranty
Operation:
Install catalytic converter
Damage Code
Operation Number
Time
Model(s)
14 332**
See latest Time Guide.
Please describe type of damage in the text field of the warranty claim.