sometimes bad cold starts, but first of all you have to look through the diagnostics to see if it shows unrealistic values. for example, you come to your car in the morning and it's 11 degrees outside. but diagnostics shows 35 degrees on the sensor
@@golfwagen4173 Thanks I drained coolant over the switch last year, but have problem with glow plugs burning out after 5 mins drive, renewed wire harness & checked relay under fuse box (all good) haven’t found answer yet
@@golfwagen4173 yes I don’t understand also, but they must be staying on & burn 🔥 out after 5 mins, went thr 4 sets. Even when temp is 10 degrees they still burn out
