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stupid question

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Use brakes

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Suggestion
The C4 uses the brakes to simulate a rear end mechanical LSD, it's more likely you heard that, or maybe even the both rear wheels were slipping and TRAC activated.
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stupid question

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Leading evidence: 'Use brakes' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use brakes' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Use brakes

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
The C4 uses the brakes to simulate a rear end mechanical LSD, it's more likely you heard that, or maybe even the both rear wheels were slipping and TRAC activated.
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stupid question

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

Rennlist: 1 discussions

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POST 1 / ORIGINAL POSTEROriginal post

I was driving out in the boonies the other day and the road was wet. I wonderd if I could spin all 4 of the wheels with PSM off. I did not want to hurt the clutch so I launched gingerly and then stepped on it... The car behaved weirdly... the back end seemed to bounce up and down and lurch forward unevenly, making a weird cu-chug noise. I heard a bit of tire squeel and then I just gave up and let off the gas. Car drove nominally after that. It was not what I expected. I was expecting the tires to spin and catch progressively. I've got M2 snows on and it was 33 degrees out. In theory, how is a C4 to behave in that situation? Does the bounching and weird pulsating noises (not PSM noise) mean something's wrong with my VC? I know this is a weird question, but I'm a weird guy!

POST 2Original post

My C4S had serious wheel hop issues with PSM turned off. I think this is normal behavior although I never tried it with winter tires.

POST 3 / ORIGINAL POSTEROriginal post

wow... I feel much more sane now that I know there's something called wheel hop! anyone have a physics explanation? thanks!

POST 4Original post

The C4 uses the brakes to simulate a rear end mechanical LSD, it's more likely you heard that, or maybe even the both rear wheels were slipping and TRAC activated. Turning off PSM does not disable the "TRAC" aspects. 33F and WET. Did the temperature rise to 33F or fall toward?

POST 5 / ORIGINAL POSTEROriginal post

fall. it was 11pm. how can I learn more about TRAC and the simulated LSD?

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