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911uk

Cold gear change issues

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12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCold gear change issues

Leading reported evidence

Replace gearbox oil

Suggestion or failed attempt

No successful repair reported for this finding.

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Suggestion · Original poster

I've tried changing the gearbox oil to redline 75/90ns which helped a tiny bit and also new semi solid engine mounts and powerflex gearbox insert which made the shifting smoother when the car is fully warmed up through all the gears but still very stiff when cold.

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Cold gear change issues
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Leading evidence: 'Replace gearbox oil' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace gearbox oil' (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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Run less cause additional wear

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

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

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Suggestion

might running less cause additional wear?

Original post Read captured discussion
Cold gear change issues
Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace gearbox oil

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 · Original poster

I've tried changing the gearbox oil to redline 75/90ns which helped a tiny bit and also new semi solid engine mounts and powerflex gearbox insert which made the shifting smoother when the car is fully warmed up through all the gears but still very stiff when cold.

Original post Read captured discussion
Cold gear change issues

Run less cause additional wear

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

might running less cause additional wear?

Original post Read captured discussion
Cold gear change issues
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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.

  • 911uk: 1 discussions

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

Generation: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi, got a 996.1 3.4 and when it's cold I have difficulty selecting 1st and 2nd. It's ok if the clutch has been in for a few seconds. When the car has warmed up after driving for about 5 minutes it's fine going into 1st but 2nd is still a little stiff to go in although once it's fully arm 2nd is fine. I've tried changing the gearbox oil to redline 75/90ns which helped a tiny bit and also new semi solid engine mounts and powerflex gearbox insert which made the shifting smoother when the car is fully warmed up through all the gears but still very stiff when cold. Anyone had similar issues and know how to improve or sort it out? Thanks Marc

POST 3Original post

Marc, Alex's answer is not a joke , its a known fix for your issue :thumb: :thumb:

POST 4 / ORIGINAL POSTEROriginal post

Oh right ok cheers guys will drain a couple of hundred ml out tomorrow. When I filled it up I did try and get as much as I could in, clearly the wrong way to do it with these cars lol

POST 6Original post

Mercedes did a recall on their manual boxes around the same era for the same problem.

POST 7Original post

Haven't heard of this one. Any idea if it also applies to the '96 993 boxes?

POST 8Original post

Applies to any boxes. When the oil is cold it's too thick and creates problems. Less of it helps.

POST 10Original post

But don't they suggest that amount of oil for a reason... might running less cause additional wear?

POST 11Original post

Could be the oil? I filled mine with triple qx oil and it was awful, worse. Refilled with Motul and its been much much better ever since (not perfect, they are all a little difficult when cold with a few miles on them). Same spec oil. OE Porsche oil is a fairly difficult to find mobil oil I heard, but can be bought in europe for cheaper than the OPC.

POST 12Original post

I found the same, Motul, filled to the line and it baulks a bit when cold but fine once warmed up. I may try taking a bit of oil out as per Alex's tip, any ideas how much?

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