|
|
|
|
|
#1
05-27-1999, 10:14 AM
|
|||
|
|||
|
My 190E engine noise become obvious if the car travel above 100 KM/h, but the loudness
generated is inconsistence, like a waveform, high and low. Anything below 90km/h is perfectly smooth. Any idea what to look for ? BTW, how do I check the fan belt is at right tension. Any help will be appreciated. |
|
#2
05-27-1999, 09:06 PM
|
|||
|
|||
|
Have you checked to be sure that the coolant fan is turning off when the engine is cool enough? If the fan is on all of the time it will be noisy.
------------------ Benzmac: ASE CERTIFIED MASTER AUTO TECHNICIAN LEAD TECHNICIAN FOR 14 BAY FACILITY MERCEDES SPECIALIST 8 YRS PARTNER IN MERCEDESSHOP.COM |
|
#3
05-28-1999, 11:20 AM
|
|||
|
|||
|
Yes, the coolant fan is off when
engine is cool, I have try to switch off the air cond but no change. The aux fan is a bit noisy but it is consistense. Beside that noise, when the car travel down hill and I just apply little presure on the accelator, a loud engine sound is also generated (sound like air intake). BTW, the filter is clean and both motor mount are new. Could it be something relate to the belt tensioner ? Thanks in advance. AL [This message has been edited by altan (edited 05-28-99).] |
|
#4
05-28-1999, 06:46 PM
|
|||
|
|||
|
Does the noise occur in any other gear at the same engine speed? In other words is the noise related to the speed of the engine??
|
|
#5
05-31-1999, 12:16 PM
|
|||
|
|||
|
Yes, the noise become obvious at 3000-3500
RPM while car travel at 100-120 KM/H. I have not try to shift to lower gear at that speed. |
|
#6
06-02-1999, 11:41 AM
|
|||
|
|||
|
I know this is hard to diagnose
but is there any proper way to trace this type of noise. It happend when the car travel above 90KM/H and then release the accelator. I tried shift to N (idle RPM), but same thing. Could this be the rear diff or wheel bearing ?. Thanks you. |
|
#7
06-02-1999, 09:22 PM
|
|||
|
|||
|
The diff's are known to fail.
------------------ Benzmac: ASE CERTIFIED MASTER AUTO TECHNICIAN LEAD TECHNICIAN FOR 14 BAY FACILITY MERCEDES SPECIALIST 8 YRS PARTNER IN MERCEDESSHOP.COM |
|
#8
06-03-1999, 10:52 AM
|
|||
|
|||
|
Assuming the diff is failed, can it
be repair or I got to replace it ? Is this a major repair and what is the expected cost ? Thanks Benzmac again for your help. [This message has been edited by altan (edited 06-03-99).] |
 |
| Bookmarks |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| 380SL engine noise - please help | larryk | Mercedes-Benz SL Discussion Forum | 11 | 09-08-2004 03:58 PM |
| 380SL engine noise | larryk | Tech Help | 0 | 08-03-2004 09:55 AM |
| Engine swap for 190e? | pistolpete5113 | Mercedes-Benz Performance Paddock | 6 | 11-29-2002 03:30 PM |
| Loud knocking noise from the engine | JimVelca | Tech Help | 2 | 10-07-2002 01:02 PM |
| 190e horrible stalling/check engine light | moomoomeow | Tech Help | 0 | 08-01-2002 03:53 PM |
Linear Mode
