Are there com backs with Volvo S40 floor shift model 2010 water pump

Question edited for clarity.
Question moved to model category.

You have a leak, you just need to find it.

Look for leaks in the hoses. Do a pressure test.

The most common reasons a Volvo S40 has a coolant leak are loose hose connections, a broken radiator, or a failed water pump.

Volvo S40 Coolant Leak - RepairPal.com

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Most have a recessed allen screw, or star-key nut located on the back side of the knob...some are hidden by a clip on cover...look for at the base of the knob design...

It could either be the heater core leaking or the A/C condenser leaking due to the drain for the "sweating" being plugged up. Sometimes bees build nests in the drain tube. Check the antifreeze make sure it's not low.

hey man did you fix it the problem with the tiptronic, i have the same issue

I, feel sorry for you, after reading your problem, but don't worry you visit the Reliable-Store they will help you for sure.
Complete 2004 2010 Volvo Electronic Wiring Diagram C30 S40 V50 S60 XC60...

Check your fluid level, if that is good then check the control valve on the hose that goes back to the firewall to make sure that is working, if both of those are good you'll have to check the thermostat and water pump on the vehicle to make sure they are working properly.

Most likely the sunroof drains are clogged. It happened to mine, the floormats and floors were soaked, especially behind the drivers side. Volvo wanted to charge me $550 to clear them out and dry out the floors. Instead I took it home, rolled down the windows, parked it in the sun and let it dry out. Then I found a mechanic who blew out the drains with compressed air for only $20. He had originally quoted me $50-100, but ended up doing it for less. He said the two back drains are clogged. You can try sticking a small flexible wire down the front two yourself, then pour water down to see if it drains properly out the bottom of the car. When I looked I didn't see the two back sunroof drains, but my mechanic said they were clogged with leaves, you might be able to clear these yourself too. I would have never guessed that it was the sunroof causing this, because you don't see the water leak around the sunroof, you only see the water backing up on the floor. Don't take it to the dealership, it's a simple job and they will rip you off.

There are 3 possible sources. The windshield (although this would puddle under the front carpet as well), the sunroof and the condensation from the climate control (evaporator). The first thing I would check is the external drain for the climate control. This is best accessed under the car.

mine did this.lift the back seat and remove the fuel sender out the tank.youll see its full of gunk..