Club Touareg Forum banner

Flashing glow plug light followed by check engine now poor mpg

781 views 1 reply 2 participants last post by  New2Tregs  
#1 ·
I have a 2013 TDI Sport w/ 135k miles. I purchased new in 13 and experienced no issues until now.

Last weekend while merging on interstate the glow plug light started blinking, went into limp mode. Was a tense situation but I was able to pull onto shoulder, turn off and immediately restart. When restarted only check engine light was on with full power restored.

Next day I stopped by O'Reillys for a scan.. P0101 indicating MAF sensor issue was only code. I cleaned the MAF sensor, check engine light disappeared after a few drives and now runs fine.

I was hoping it was simply a MAF cleaning issue but I've noticed my mpg since last refuel has gone from the typ +/- 30 to 25. I started also tracking MPG since start.. it's definitely declined suddenly.

Luckily a majority of the 135k miles has been road trips and commutes including interstate runs. I've kept up with maintenance over the years, just wish I would've educated myself on quality diesel when I purchased the car.

VCDS is on the way. I assume initial error is stored. Any one had the same issues? Any chance I could harm the car by driving while I wait on VCDS and sort the issue?