Hello,

A few months ago, I blew my oil cooler line, when driving in city traffic. Luckily I realized it early, pulled the car over with oil all over the place. The car survived with no damage! to the engine and runs fine. However, since then the turbo has started to "whistle" when listened for carefully inside the car between 1500-3000RPM, with the noise increasing with engine RPM. There is no noticeable difference in the performance of the car. The oil change was free of metal debris. The whistling noise disappears once the car is warm and cannot be heard at higher speeds.

suggestions?

Thanks in advance

Some will make a little noise. Be sure that the oil did not damage the wastegate hose, for they will whine if broken.

------------------
Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

What model & year??? Some 1985 models had problem w/air recric. valve on turbo charge system.

Sorry for not including model year...it is an 84 300SD California Version

I took a look at the rubber hose, it doesn't appear to be visibly cracked