M1 TD&T
I have a drip though, need to address that so that it leaves the garage clean. Then find a used encapsulation panel.

Just finished Step 1 of the KBS 3-Step Tank Cleaning and Sealer System. Letting it dry now. Next up... RUST BLASTTTTTTTT!

An error on my part in writing that text. The engine warms to 80 or just a tad above on the gauge, actual temp is unknown. It never remains below 80C at any time when warm. During the summer however, it warms up closer to about 82/83C for obvious reasons. It is at that point when the engine is at about 82/83C where the engine vibration shows itself fully. It's only at idle when the vibration is bad.

Sorry...not trying to hijack your thread, but I sense that your problem might be similar so I think finding out what this is would help both of us.

Steve A

Hijack away, this thread has gone 11 pages and I haven't accomplished much due to time and budget constraints.

My tank is STILL drying so I can't seal just yet.

And I gave my 6 spare injectors to my friend to pop test for me.

While the last thing I need to do right now is worry about this, I figured I'd ask. Do the '603s have much of a turbo whistle with the stock airbox? My friends '602 you can hear a little bit of turbo whistle and I know the airboxes are way different. On my frieds TDIs the whistle is very apparent, and I watched a video a 603 swapped R109 and his car had a very loud turbo. If I delete the MAF (what does that entail) and put on a cone does that make the turbo whistle? I know I won't really see any performance gain, I'm just a closet ricer haha.

http://www.youtube.com/watch?v=NGvadio8JDo&feature=related

Similar issues

From the stock perspective I can hear the turbo from the cockpit when I accelerate away from a stop, but it isn't all that loud. Problem is that for some reason my turbo goes offline fairly quickly due to an unknown vacuum problem that I haven't resolved.

Comparatively you have to remember that a W140 is a 5000lb car so takes a lot of umph to move it off the line.

I know that's not much to go on but it's something.

steve a

I never heard the turbo in my (first) '87 300D until I had owned it for about two years. I had a rattle or jingle in the engine compartment, was running the engine in the garage with the hood open, brake on, going on/off the loud pedal, noticed I could hear it spool down (quite clearly) in the garage.

Normally, no.

On my 87 300D's, the KKK turbos are nearly silent, but I can sometimes hear the Garrett... usually on spool-down. The 93 300D made a bit more noise but it was still pretty quiet. For any of them, if the radio was on or fan was not on low speed, you wouldn't hear anything.

:1eye:

Sounds good (get it?)

Does putting a cone filter on the intake make the turbo louder? Like I said, I'm a closet ricer, you can pick up a decent washable filter for like $20 anymore so it won't break me if I decide it is obnoxious.

Should be louder, and turbos love dust.

You think cone filters don't do a good enough job?

There is a lot of debate over the K&N and other washable filters. Personally, I'd go with a good quality paper. It's going to be tough to find a cone filter with the amount of filter area of the OE.

I've got a brand new MANN in the stock setup right now. I like how big it is and how much area it has. WAY bigger than the 2.5 cars.

Yeah, but the 2.5s and the 606s got the coooool vented fender.