fullymatted.
Back to search
Rennlist

What's that noise?

Add to repair workspace
Open repair workspace
Original source
12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHWhat's that noise?

1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

Insufficient extracted evidence does not mean there is no answer in the original discussions.

1 matching discussions · 12 captured posts examined · 0 partial discussions

Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

12 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I absolutely love the sound of my C4 engine but don't know what I am hearing exactly. If someone wouldn't mind explaining what are the mechanical parts that are making that engine sing I'd appreciate it. I hope this question makes sense.

POST 3 / ORIGINAL POSTEROriginal post

I am interested in knowing what engine parts are the major contributors in producing the sounds made. What are the parts I am hearing when the engine is accelerating or idling for that matter.

POST 4Original post

Geez Louise!! The sound of a high performance German engineered horizontally opposed flat six that is incredibly brilliant in design, performance and endurance! What you hear, and experience, really cannot be described...it becomes a siren song and part of your soul. My two cents! HA!! Just drive it and love all the sounds it makes...

POST 6Original post

Quotes source post: 10063127

You are hearing the combined sounds of fuel injectors, spark, and mixture being burned or exhausted. There is the noise of the idler roller bearings, some accessory drive bearings, the noise of the cam chains and their respective sprockets, the oil pump, power steering pump. In short everything in the engine that moves back and forth, rotates, opens and closes, turns on and off, sparks, makes a noise that adds to the overall din you hear.

POST 8Original post

Quotes source post: 10065127

It's your worn motor and transmission mounts with 6k miles on them, connected to the water pump that has distributed it's plastic fins to the far reaches of your cooling passages never to be seen again since it was not replaced at 10k miles preventatively, connected to the engine straining not to explode on the 2.25 gallons of oil you neglected in there for longer than 365 days despite only traveling 600 miles, connected to the IMS bearing jumping to ludacris speed over 2500 rpm and creating new end cap tolerances for free, connected to the mufflers you should have Gundo hacked with your buddies harbor freight welder as your first foray into the wide world of welding in his driveway... something like that.

POST 10Original post

A little man named Hans who lives under the hood. Don't disturb him.

This is a source reference. Confirm exact model applicability in the original material.