I have a noise coming from the drivers side front of the engine in my 1992 300se. I have been advised its probably the Air Injection/smog pump. I took the steps and removed the serpentine belt to check the pulleys and all seems ok there....no sideways movement....no grinding when spinning by hand.
I was tempted to removed the pump altogether but just disconnected the electrical connection to the clutch. when I put all things back the noise is still there...goes for about 20 seconds then off....once warm nothing....don't believe its the belt...
a new pump is quite expensive...$1200 original or new......400 or so remanufactured in the USA...they want a core exchange for about $260...
Any ideas????
Cheers and safe driving
Greg
AIR INJECTION/SMOG PUMP
- pina4greg
- E Class
- Posts: 59
- Joined: Tue 09 May, 2017 11:53 pm
- Model you own: w140
- Region: Western Australia
- Location: Eglinton
AIR INJECTION/SMOG PUMP
1992 W140 300se