Can anyone help, I have a 2018 Tiguan se, since purchasing vehicle in 2023 I have to add coolant approx every 6 weeks, it’s been into Marshall’s and they cannot find a leak, now I have started putting coolant in every 4 days, it’s back in Marshall’s and again can’t find a leak, it’s been pressure tested to approx 2 bar with approx 3% dropped in 20 minutes which is apparently acceptable, had previously had dye put into the system again by Marshall's showing no leaks, amongst other serious issues, gear box, prop shaft and 1 dif, has anyone had similar issues (I’ve had a 2013 Tiguan r line previously and had no issues with the coolant system or anything else) has the quality gone down that far. I wait with anticipation for the outcome as the car is in Marshall’s as I type.
Jojo10
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