Strange smell in cabin suddenly while driving
Yesterday evening somethings strange happened. I hope you can help to find the problem. I will point out the situation very detailed, probably too much information, but maybe it is of importance:
Yesterday I drove to a family meeting which was a 150 km trip. As usual I started in Stealth mode and when 45 km left in the HV battery I started Sport mode which leaves the battery after some minutes at 43 km. The last 40 km I turned back to Stealth mode and at the location I charge the car at a public charger. I arrived around 2 PM and drove back home at 9.30 PM. Same driving modes, so started in Stealth, when 45 km left in the HV battery I started Sport mode. In Stealth mode most of the time a drive around 105 km/h, when there is not much of traffic on the highway I drive the maximum allowed speed of 130 km/h, also this time. I let the motor get warm in Sport mode for 5-10 minutes at 105 km/h. After driving 20 km in Sport mode at a sudden a strange smell came into the cabin from the vents. It smells like welding iron. I didn't stop and drove the rest of 80-90 km's home. When switching back to Stealth mode the last 40 km's the smell did'nt go away. So it seemed not to be related with the ICE. After arriving home I checked the braking rotors, but they were not warm. When driving I checked the energy consumption from the battery, but this was normal at 100, 120 and 130 km/h. I looked under the hood, but nothing looked burned. Only at the passenger's side some oily substance was leaking a very little little bit (picture will be posted later). I plugged in the car and would inspect again with day light.
Today I did again inspection. The car was plugged in. I started the car and a high pitch tone came from under the hood. It seems to be a pump, pumping (at maximum speed?) a blue fluid. The fluid is a little hot and the level is within range. When the car is not plugged in this pump is not pumping at high speed, and now the big ventilator came on, which was not the case when the car was plugged in. No faults were reported from the OBD reader. Fluid temperature 24 degrees Celsius.
I drove a small distance in Stealth mode and the same odor came from the vents. The ICE was not activated. I noticed that the cabin ventilators are not working. Some ventilations comes from the vents when driving, but no active ventilation??? When changing the ventilation speed, nothing happens. The air conditioning seems to work, but because the ventilators are not working I put the windows down. Putting them back up the strange odor comes back. When thinking back at yesterday evening the ventilators seemed working, but I was driving at 130 km/h, so probably at that time they were not working, so because of the speed there was (passive) ventilation.
Does anyone have a clue what the problem is?
- where does the smell come from?
- why does the active cabin ventilation not work?
- is a fuse burned?
- is fluid leaking somewhere?
- is something burning away?
- is it related to the airbag replacement a week ago?
- something else?
Thanks in advance for your help en knowledge.