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Matt
Matt, Engineer
Category: Transmissions
Satisfied Customers: 20584
Experience:  Mechanical Engineer BEng Hons22 years experience in car engine industry, 10 years in formula 1
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I have a 2006 Jetta 2.5 Gas engine with 6 speed tiptronic

Customer Question

My Name is ***** ***** I have a 2006 Jetta 2.5 Gas engine with 6 speed tiptronic transmission. I have been manual shifting it for months because it will "miss" 4th gear. It finally got stuck in 3rd gear. I am not convinced the plates are slipping. I think this may be more of a solenoid valve issue. Not sure if getting a new valve body would fix the issue. Car does have 157K on it though.
JA: Thanks. Can you give me any more details about your issue?
Customer: shifting from 3rd to 4th the transmission "misses" and engine will over rev. I let off the gas when tapping the tiptronic in manual mode from 3rd to 4th and it usually will grab the gear then.
JA: OK got it. Last thing — VW Mechanics generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 10 months ago.
Category: Transmissions
Expert:  Matt replied 10 months ago.

Hello

I'd take a look at the colour of the transmission oil it should be a dark red colour if its black then its needs changing together with its oil filter. Also check its level with the gearbox warm and just after you've moved the selector through all the positions leaving it for a few seconds in each one and then back to park.

You can top up the box through the side fill plug if required and make sure you use the correct oil for your car as the fluids are not all the same. Some manufacturers recommended a change of the type of fluid - Speak to the local dealer and parts dept - they will advise you on the updated fluid to use..

If that’s all OK then check all the electrical connections of the gearbox, remove each connector in turn and spray with contact cleaner. Check that the wiring to the gearbox is in good condition with no chafing or frayed wire

If this is OK then check the selector lever linkage / cable under the car for any broken parts and or missing bolts as if this is coming adrift then it can rub on the car body or just bind up

Then - you should top up if low and re try it - or, if its level is ok - and condition is ok - then the next step is to drain it off - open it up and clean the filters inside -- refill and retry it..

Often - just doing the above cures many troubles with these - and you certainly can't condemn the unit without doing the above...

Expert:  Matt replied 10 months ago.

Hi

do you still need help?

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