As part of a wash of the car yesterday I opened boot and bonnet and cleaned along all the ways , edges & seams. I used a small soft brush and the hose on very low and washed the engine bay basically just all the plastics etc. drove to my sister's later and on came ABS TPMS Park brake warnings. I did not spray the engine bay but seems like I have put water somewhere I shouldn't ; feeling well stupid right now. My car is a 2012 A8 with 120,000 miles and has given no trouble up to now.- any thoughts

thanks Trev

 

I think the water got into its engine that's why behaving like this. But don't know exactly what could happen