1. Battery Cables. If you have a battery post that looks like this, it may be keeping your Passat from starting. Start by taking a look at the battery posts. If they are loose or corroded, it acts as a barrier that can keep the starter from getting the voltage it needs to crank the engine. Automatic Start\Stop not working - 15-10-2012, 07:47 PM. Hi, We have a 2009 '09' Passat Estate (Bluemotion 2). The auto start\stop use to work happily but now I have noticed it does not work. The manual mentions some criteria which needs to be met and i'm fairly confident all of these have. Something which is strange is that on the instrument The Passat, from B1 to B8, as shown by VW. Lots of Bs here, and they're not vitamins; they're Volkswagens. With more than 23 million examples built since 1973, the Volkswagen Passat is one of the best-selling family sedans all over the world. Here's a bit of its history, courtesy of a series of videos from VW. If your battery is totally dead, watch the video below for instructions on how to enter and start your vehicle manually. Replacing the Battery in your Volkswagen Key Fob. To fully solve the problem and get your key fob working again, you'll have to change the battery. A Volkswagen key fob can be replaced with the help of a: When the start stop activates and the car engine stops, when I set off again the car does not start and the glow plug flashes. I can't start the car while the glow light is flashing until I disable the start stop system. ↳ B7 PASSAT -2011 on.. ↳ B8 Passat 2014 on; ↳ R36; ↳ OTHER VAG OR NON . . ↳ I.C.E; ↳ HOW-TO-SECTION; ↳ The green engine start-stop indication light illuminates when conditions are correct for automatic engine standby mode to start. If the circumstances are not suitable for the automatic start-stop, the amber light on the VW Passat Engine Start Stop will not light up. Many reasons inhibit engine shutdown. About 2-3 weeks ago I noticed that the brake pedal was rock hard when I went out to start the car in the morning or after 30min. As soon as the car starts the pedal returns to its normal resistance. Braking appears to be normal while driving and the pedal can be pumped at idle with no change in engine speed. Reason #1 - There is an issue with the battery. Start-stop systems need a special battery to run inside a car's engine. It is a special battery that allows these start-stop systems to constantly turn off and turn on again and stay idle. A regular battery just can't do this. If you notice your start-stop system isn't working, check if I know there have been a lot of posts already about this fault / problem, but recently my 2005 Audi A4 2.0 TDi started to have a loss of power, mainly when in 2nd/3rd gear around 1500-2000 rpm. It also jerked sometimes, but eventually sorted itself out, usually after going past 2000 rpm, and was followed by a puff of black smoke / dirt / dust Hi I have VW Passat 2L TDI B7 2012 have replaced my car clutch and flywheel after that start and stop stopped working if I disconnect from the battery and reconnect again is start working and after few minutes is stop working again and it's not giving any error message Dopg.