That sounds like a timing/ cooling system issue. The coolant sensor would adjust the timing etc. Your tech would have to scan the car & check the live readings (HOT & COLD) & check the emissions. Put all the pieces together & solve the puzzle
Hi Jc, A fully charged battery is 12.6. The link below is a short youtube video on how to find out if a car battery has a power drain, The video starts with the guy loosening the negative lead to the battery then turns the multimeter on and sets it to 20 DC, plug bottom of lead to current mode and places 1 multimeter lead on top of the terminal inside the negative lead and the other multimeter lead on the negative lead and wiggle the negative lead off the battery, The current being drawn from your battery should be less than (5.0) 50 mille volts..... The reason he takes the negative lead off after connecting the multimeter this is to save any codes from the car as technically the battery isn't disconnected.....CHEERS..
Some imports require the entire light assembly to be removed in order to replace headlamps. Look to see if there are angled rods on the back side of the light assembly. If so, see if the can be pulled straight up towards the hood of the car. When they are released the headlight will be able to come forward. Good luck. Hope this helps.