Volvo S70 T5 automatic gearbox

Gouws · Post by **Gouws** » 25 Jan 2019, 11:37

Im driving the volvo S70T5 automatic.now the gearbox starts to slip when driving the car for one or two km........until standstil.if it starts to slip while driving an erow starts flaching.after standing stil there are no moovment in any gear......have to switch the car off for few minets befor i can drive again for small distans can somone gif me advise please......already done clutches and put dex two

shegarty · Post by **shegarty** » 25 Jan 2019, 14:17

Gouws wrote: ↑25 Jan 2019, 11:37 already done clutches and put dex two

- not sure what this means as you said you are dealing with an automatic.

The first thing I would do is check the fluid levels and look for any leaks. It sounds to me like you might be low on fluid or have a pressure leak somewhere. Also, check the coolant reservoir for signs of oil. The integrated rad/transmission cooler might have developed a leak between the cores.

Gouws · Post by **Gouws** » 25 Jan 2019, 14:54

After tjekking the oil level whit motorruning and in p...it whas fine after driving 2 km it started slipping and the up arrow started to flach.when i switched of for a few min i could drive again.when i got home the oil level where whey abouf the mark......

Gouws · Post by **Gouws** » 25 Jan 2019, 14:55

Sorry for my speling

Gouws · Post by **Gouws** » 25 Jan 2019, 14:56

When driving hard so the turbo boost it starts slipping in a few meters maby 600/700 meters

Gouws · Post by **Gouws** » 25 Jan 2019, 14:58

Why does it ghet to a slipping so bad that the car doesent move until its of few min

Post by **scot850** » 26 Jan 2019, 12:16

As the oil warms it starts to become thinner. Don't worry about the spelling as my Afrikaans is non-existent so I appreciate your helping me with english!!

From what I read above you have an auto trans (4-speed auto). I believe you have change the valve bodies possibly or do you mean the clutch plates in the trans itself?

How did you change the oil in the transmission? We always recommend you never use a machine and power flush these older cars as it tends to loosen the old dried oil from the inside of the casing and it gets into the valve bodies and clogs the valves which make the gears slip or not work at all.

What transmission oil did you use?

Neil.

JLGALLOP · Post by **JLGALLOP** » 28 Jan 2019, 14:20

Hey,

My 850 t5 has the same symptoms. Works fine but has no "gears" after about 1minute of driving.

If I turn the engine off and let it stand for a few minutes it works again.

I dont believe its the oil temperature because its minus 10 centigrade right now. Nothing heats up that fast.

I found several threads with this symptom, but none of the threads end with someone solving the issue. Any ideas?

Post by **misha** » 30 Jan 2019, 04:23

Transmission codes should be read.

JLGALLOP · Post by **JLGALLOP** » 30 Jan 2019, 08:28

Yep, the thing is its a 96 with the obd2 which is not very compatible (motronic 4.3?). Can I read the transmission codes with a DIY led reader. If so, which pin?

All help is highly appreciated.