Why is my VW Jetta leaking coolant?
If coolant from your VW is leaking from the water pump, the internal bearing and seals are most likely weak, and there will be a trail of coolant from the pump region down towards the engine. Coolant hoses also often cause coolant leaks, since they can be damaged by oil leaks and age.
What coolant does VW use?
The only types of coolant you should put in your Volkswagen are either G11 or G12 approved anti-phosphate, anti-amine, anti-phosphorous coolant — whichever the owner’s manual calls for using. Look on your expansion tank for the recombined coolant type as well.
Why is the coolant leaking from my VW Jetta?
See all problems of the 2000 Volkswagen Jetta . : the contact stated the vehicle coolant leaked into the electrical wiring harness. An independent repair shop performed a diagnostic test, but no failure codes displayed. Upon further inspection, the mechanic determined there was a coolant migration problem.
Can you use universal coolant on a VW Jetta?
Literature published by VW explains that G12 is not compatible with other coolants, including universal coolant sold elsewhere. They warn that mixing G12 with other coolants might cause engine or seal or sensor damage, and that their warranty may be void if there is evidence of coolant mixing and damage resulting from that.
Are there any problems with the Volkswagen Jetta?
Volkswagen Jetta owners have reported 10 problems related to coolant leaking (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volkswagen Jetta based on all problems reported for the Jetta.
Why does my VW MkIV have a slow leak?
This is a known issue with VW engines including the MKIV, and it is the most common cause of a slow coolant leak for this vintage engine. Note that the coolant used in many VW engines is G12, only available through the dealer.