KarlH20

S40 gearbox slipping

I've got a 2007 Volvo S40, gasoline engine, with about 115k km on it. Lately, the gearbox feels like it's slipping or just not shifting as smoothly as it should. I've checked the basics, but I'm starting to worry it might be something serious with the transfer case. Anyone else experienced anything similar?

A 2007 Volvo S40 owner reported issues with the gearbox slipping and not shifting smoothly, suspecting a serious problem with the transfer case. A suggestion was made to check the gear oil for wear, as worn gear oil or metal shavings could indicate gear wear. The owner confirmed the issue was due to defective gears in the transfer case, which required professional repair.

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4 comment(s)

Sounds familiar! I've got an S40 too, and had similar gear grinding issues. Check the gear oil. If it's really worn, that could be your culprit. Ever notice any gear wear signs or considered a transfer fluid change?

Thanks for the quick reply! Gear oil wear... is that something I can check myself, or is it best left to a professional? And what kind of 'gear wear signs' are you talking about?

You could check it, but honestly, if you're not comfortable, a workshop is the way to go. Gear wear signs would be like metal shavings in the old fluid. I ignored mine and it cost me. It's like ignoring a leaky faucet - eventually, the whole pipe bursts.

Appreciate the insight. Sounds like a trip to the shop is in order. Thanks for confirming my suspicions! It turned out to be defective gears in the transfer case. Repair cost 330€. Thanks for the help!

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VOLVO

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S40