Chery tiggo 2.0 txe. heat guage moves quickly to middle of gauge, unusual! have to fill with water after every short drive. no water leaks. alarm is now sounding

All in this links, videos as well.

https://www.google.com/search?q=chery+tiggo+1.6+timing+marks

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No. All you can do is replace the TPS. Throttle Position Sensor. Throttle bodies cannot be programmed or reset. All you can do to a throttle body is take it apart and clean it. Just replace the TPS.

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Here you go..they always have service manuals for your Chery.
Chery TIGGO User Manual

Chery Tiggo 2.0 liter engine.
cylinder head torque sequence: 7 6 2 4 9 .......................................... 10 3 1 5 8
Is's done in 3 stages 1st stage 45 Nm......
2nd stage 90 degree turn, or a 1/4 turn......
3rd stage 90 degree turn, or a 1/4 turn.......

Camshaft bolts inlet and exhaust share the same torque settings 120 Nm

Cylinder head bolts MUST be replaced.

Main bearing cap Bolts: 1st 45Nm.......
2nd 180 degree turn, or 1/2 turn.......
Connecting Rod Bolts 1st 25Nm......
2nd 90 degree turn or 1/4 turn

Lower cylinder Block bolts 23 Nm........
Camshaft bearing cap bolts: 11Nm

YES, if the timing belt snaps and the engine is still rotating, yes the valves bends.

It's an inteference engine.... If the belt goes and the engines looses timing, the valves bends.

Yes, the temperature gauge should normally stop in the middle, between the cold and hot points on the gauge. When the engine is cold the thermostat will be closed and will keep recirculating the coolant in the engine block until it warms up sufficiently. Then the temperature of the warm coolant will cause the thermostat to open the channel to the radiator to get rid of excess heat, which should stop the coolant from over heating. So the effect of the thermostat keeps the coolant at a fairly stable temperature. When the coolant runs low, it can't transfer enough heat to the radiator and the coolant and engine then over heats. Watch for radiator leaks under your car after you have been driving it. If the coolant goes low again fairly quickly you could have a leak in a hose or the radiator itself.

You might check the coolant level after the engine cools,if it's low add 50/50 mixture of coolant and water. Keep an eye on the level to see if it happens again. You might have a small leak in the system. Good luck