2012 Mercedes-Benz E-Class Consumer Review: engine racket on start up
ADVERTISEMENT

2012 Mercedes-Benz E-Class - Consumer Review

Average Consumer Rating

16 Total Reviews

All Models

ADVERTISEMENT
Select a different vehicle  
Recently Viewed
There are no recently viewed vehicles to display
Performance
Comfort
Fun-to-Drive
Interior
Exterior
Build Quality
Reliability Value
engine racket on start up
By mitchellrowe on

Vehicle

2012 Mercedes-Benz E-Class E350 Sport 4MATIC 4dr Sedan AWD (3.5L 6cyl 7A)

Review

best guess is intermittent defective oil pump . on half the start ups ( cold or hot ) , loud valve taps / rattle ... most likely due to oil lying in the oil pan . seems an odd explanation , as benz uses synthetic oil that sticks to moving parts ?

Best Features

typical Benz

Worst Features

Benz gasoline engines , as long as i have owned them ( 45 years ) , have quirks .
Recommend (0) (0)
Report it
Comments (1) Post a Comment
By rhr24
on 02/05/13 13:33 PM (PST)

Mitchell, I have extactly the same problem. I just had the car in for service where I asked them to check it out, and their response was that these cars just have very loud engines. The high compression of the Blue Efficiency engines makes them comparable to diesel engines, and as such they are loud. While I am not sure that I buy that answer, I don't feel that valve tap or chatter is normal in any engine. Have you found out anything further?

Report it
ADVERTISEMENT
Post a Comment

You must be signed in to post a comment.

Register

Nearby Inventory Zip Code UPDATE
 
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Have a question? We're here to help!
Chat*
Chat online with us
Email
Email us at help@edmunds.com
*Available daily 8AM-5PM Pacific
Phone*
Call us at 855-782-4711
SMS*
Text us at ED411