White Smoke from exhaust.

[Darek]

Hi all.
Couple months ago some strange started to happening, 2/3 times a week my "ECO DRIVE" (don't know how to call this) stopping working for exactly 30 min.
Like you see on the picture, when we release accelerator the bar goes to Green mark and we save the fuel bla bla bla.
What's happening to me its suddenly the bar don't get to green spot, my distance range drain drastically, mpg going down really fast, white smoke from exhaust and if I stop and turn off the engine its massive noise from under the bonnet, like loud Fan. The smoke have smell like burning gum. The most strange thing is its last exactly 30 min.
Any suggestions, thanks.
Regards
Darek

 

[WilliamParsons]

Hi all.
Couple months ago some strange started to happening, 2/3 times a week my "ECO DRIVE" (don't know how to call this) stopping working for exactly 30 min.
Like you see on the picture, when we release accelerator the bar goes to Green mark and we save the fuel bla bla bla.
What's happening to me its suddenly the bar don't get to green spot, my distance range drain drastically, mpg going down really fast, white smoke from exhaust and if I stop and turn off the engine its massive noise from under the bonnet, like loud Fan. The smoke have smell like burning gum. The most strange thing is its last exactly 30 min.
Any suggestions, thanks.
Regards
Darek

The issue you're experiencing with your vehicle's "ECO DRIVE" system, where it stops working for precisely 30 minutes while displaying symptoms like reduced fuel efficiency, white smoke from the exhaust, and a burning gum odor, along with loud noises from under the bonnet, suggests a complex problem that may be related to engine or emissions components. It could potentially be linked to issues like a malfunctioning sensor, exhaust system problem, or engine misfire. Given the symptoms, it's crucial to have a professional mechanic or technician conduct a thorough diagnostic inspection to identify the root cause and perform necessary repairs to ensure the safety and efficiency of your vehicle.

 

[SpikyMikey]

Hi all.
Couple months ago some strange started to happening, 2/3 times a week my "ECO DRIVE" (don't know how to call this) stopping working for exactly 30 min.
Like you see on the picture, when we release accelerator the bar goes to Green mark and we save the fuel bla bla bla.
What's happening to me its suddenly the bar don't get to green spot, my distance range drain drastically, mpg going down really fast, white smoke from exhaust and if I stop and turn off the engine its massive noise from under the bonnet, like loud Fan. The smoke have smell like burning gum. The most strange thing is its last exactly 30 min.
Any suggestions, thanks.
Regards
Darek

Is your car a diesel? If so, it could well be it performing a DPF regeneration.