307 Transmission hard gear shift

My friend has a 307 of the 2006 model new chassis. 1.6 and automatic transmission.

While we were in the car today, we noticed that if you want to get up a little on the start, there is a hard voice in the 2nd gear. He has repeated this several times, though not often. Today, when the vehicle stopped, it was a waste or a double sound.

Normally there is no problem at check-in, but another friend of mine who had a similar problem had to change all chances of renoult megan and it was expensive.

The vehicle is at 47,000 km and all maintenance has been newly done.

Do you have any information or suggestions on this subject?

The automatic transmission oil is different, it must be ATF. If there is no change in a knowing place, there may be a problem. If there is no efficient oil passage through valves, there will be problems with gear shifts. If the oil does not keep its properties when it gets hot, there is no meaning. Learn the brand of oil I think. must be automatic gear oil, or ATF (Automatic Transmission Fluid)

The Peugeot service we called from the industry said this oil.

"solenoid valves" have a spooky name, we hardly understand the parts. Is it easy to repair?

My friend is worried about the transmission change, which costs 3000-4000 TL.

And he didn't always do that. It mostly happens when he tries to use the series.

If anyone has another idea, I would be glad if they share it again.

The Peugeot service we called from the industry said this oil.

"solenoid valves" have a spooky name, we hardly understand the parts. Is it easy to repair?

My friend is worried about the transmission change, which costs 3000-4000 TL.

And he didn't always do that. It mostly happens when he tries to use the series.

yes the oil is correct but it should take 3 liters instead of 4. When the temperature of the vehicle reaches 90 degrees, it increases to about 115 degrees in the oil in the transmission and expands. When it expands, it will be about 5 liters, it will throw out excess oil from the oil drain and look under the vehicle.

solenoid valves = electro valve. Transmissions at 307 are gearboxes that change gear with oil pressure. Thanks to these solenoid valves, gear oil is sprayed to shift gears. When the oil gets too hot, it loses its properties over time, and since the valves cannot spray, there are knocks especially in the shift from 1st gear to 2nd gear. The reason is that the most pressure is needed when passing from 1 to 2.

Solenoid valves are 2 pieces, they change 450 TL gearbox including oil workmanship without going down. If there is a kidnapping in the vehicle alone, then the room where the gearbox needs to land varies between 1600-2000 TL.

solenoid valves = electro valve. Transmissions at 307 are gearboxes that change gear with oil pressure. Thanks to these solenoid valves, gear oil is sprayed to shift gears. When the oil gets too hot, it loses its properties over time, and since the valves cannot spray, there are knocks especially in the shift from 1st gear to 2nd gear. The reason is that the most pressure is needed when passing from 1 to 2.

Solenoid valves are 2 pieces, they change 450 TL gearbox including oil workmanship without going down. If there is a kidnapping in the vehicle alone, then the room where the gearbox needs to land varies between 1600-2000 TL.

you explained very well. There is a slight knock on my vehicle when I shift from 1st gear to second gear and when the car is in red light or something. I wonder if it is enough to change oil firstly for this situation? Or is it absolutely and absolutely valve replacement necessary?