Try changing the temp. sending switch. it controls the gauge and light. It is usually located on the thermostat housing, on most vehicles.
THe fluid will need flushed and changed.
Where is it leaking from? Could be front or rear seal or coolant lines Did you change gasket when you changed fluid?
When you changed the Radiator did you flush the engine to remove the transmission fluid that the already mixed with your water in the engine block. If not that would explain the presence of the fluid in the coolant holding tank.
If there is no fluid coming from the radiator to the thermostat housing, it could be due to a blockage in the coolant system, a faulty water pump, a stuck thermostat, or low coolant levels. It is important to investigate and address the issue promptly to prevent overheating and potential damage to the engine.
The orange liquid coming from your bike is likely brake fluid or coolant. If it's coming from the brake system, it could indicate a leak or that the brake fluid needs to be replaced. If it's from the cooling system, it may suggest a coolant leak or overheating issue. In either case, it's important to address the problem promptly to ensure safe operation.
AnswerI would suspect oil or transmission fluid is mixing with the coolant. Have this looked at by a professional immediately and do not run this engine until you do. In a 2003 Passat, the coolant is G12 which is supposed to be a permanent anti freeze.i.e. there is no scheduled change for the fluid. It is pink, and there is a purple brand too that can be mixed. If some other type i.e. G11 or a glycol anti freeze, is added, the fluid could look brown according to the manual.It is possible someone mixed the two if it was changed recently.If you hadn't mentioned that the fluid was changed recently, I would have left the answer above as the only answer.Dale
Sounds like the coolant temperature sending unit (CTS sensor) It detects the current temperature of the radiator fluid and determines whether it should choke the throttle body or not. It usually screws into the intake near the thermostate housing. Trace the top radiator hose to the intake / thermostate housing location and you will see it. Usually has 2 wires going to it.
your radiator has internally failed. it needs to be changed immediatly before irreversible damage is done to the transmission. flush your transmission and coolant several times.
Check the water pump. Examine it for traces of dried coolant that might be leaking out of the casting.
No. Transmission fluid lubricates the transmission. Coolant is used by the radiator to cool the engine.
well, if by fluid u mean coolant than yes. If coolant is leaking, there wont be anything to cool the engine temperature. Replace the cap, there very cheap.
A failed seal. For example if the fluid is coming from the water pump weep hole, the water pump has failed.