#weiz found this in the manual, it may be of use 1-2 BASIC CHECK AND ADJUSTMENT 1-2-1 CHECK OF COOLING WATER LEVEL AND WATER LEAKAGE Check that the cooling water level is between the lower limit (LOW) and the upper limit (FULL) of the reservoir tank. 1-2-2 WATER LEAKAGE With the engine idling, visually check that there is no water leakage from the radiator, radiator hose, heater hose, water pump, heater hose, etc. Moreover, apply pressure, using a radiator cap tester. Under this condition, check that no water leakage is present. SPECIFIED VALUE: Specified value for check 122.7kPa{1.25kgf/cm2}
thanks for reply, will check it soon, in moment I lost 1/2 pint on 20 km when driving to my friends garage. Gets to 100 degress. Waiting for the CO2 tester. next idea use my old radiatorcap and pressure it up with aircompressor until 1,2 bar and wait.
@phil no sorrow be back soon only the head gasket. some times when children plays with tiny cars its cost some bucks, think so 1000 euros.Better of lost a charger..
So Copen is in the hks workshop because I can not adjust the timing chain myself. also let the clutch directly and the V-belts change. Engine must be dismantled. cost from 800 euros to 1700 send photos in 2 weeks