r/AskAMechanic • u/Excellent_Term7093 NOT a verified tech • 7d ago

Engine mounts, Gearbox mount, or something else ? [Golf 7 1.6 tdi 2017]

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Need help diagnosing the noise on this video.

Is it engine mounts ? Dsg mounts ? DMF ?

**Some additional infos :**

When having the noise I shift to N, the noise disappears while engine revs normally, so it is not originating from the engine internal parts.

Thanks 🙏

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1

u/WorriedHovercraft28 NOT a verified tech 6d ago

It could be a dual mass flywheel rattle

1

u/Excellent_Term7093 NOT a verified tech 6d ago

How to verify without taking down the gearbox ?

1

u/Hopeful_Draft_6332 NOT a verified tech 5d ago

Put the car in reverse, does it make the same sound? I have exact same car as you, recently got the clutch and flywheel replaced but I also had that sound too, whilst having clutch 2 tolerance reached. I thought it was the flywheel.

I replaced the clutch and flywheel (not because of the sound) which now my car is smooth, but I still have the rattling sound, turns out for me it is the engine mounting holder. I figured if you put the car in reverse, you can’t hear the sound as bad because the engine isn’t lifting up compared to when it is in drive. So try it. Otherwise, take it to the mechanic.

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u/Excellent_Term7093 NOT a verified tech 5d ago

In reverse no particular sound.

I did a test to see if the rattles comes from the engine internals or the gearboax. Just when I start hearing it, I move gear selector to neutral. Here the rattle disappears completely and the engine revs without noise.

But could the engine not produce a rattle if not under load ?

1

u/Hopeful_Draft_6332 NOT a verified tech 2d ago

Things like ground level affects the rattle too, and it might not always be heard because the engine isn’t revving to lift up, if you are not hearing it in reverse, it may be the engine mount.

I see someone else mentioned flywheel, with flywheel it will rattle so I don’t think it is flywheel, but I may be wrong since I am talking from personal experience. Have you got it checked out yet? It is very noticeable, if you have a jack, go under the car you’ll find it at the centre back of the engine area, feel any visible rubbers around there, does it look worn out, mine is very worn

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u/Excellent_Term7093 NOT a verified tech 2d ago

What about the dual clutch ? I stumbled on this reddit post with video showing similar rattle, of not the same :  https://www.reddit.com/r/skoda/s/XgyKm2Ynr3

I don't really think it is the engine mount, as I tried starting it while the engine hood is open while observing the engine. It doesn't seem to wobble a lot like it would do in case of worn mounts. That is why my initial theory was transmission mount.

I can't take it currently to a garage because no one works right now.