20 Most Recent 2007 Volkswagen Jetta 2.5 Sedan - Page 5 Questions & Answers

I have a 2006 and a 2004 Jetta - the '06 is off by 4 mph and the '04 is off by 2 mph - differences calcuated by multiple GPS units in the cars for testing.

Apparently I took the easy way out and bought larger tires to compensate for the speedo difference. My '04 now matches my GPS mph and my '06 is off by just .5 mph.

Go to http://www.1010tires.com/TireSizeCalculator.asp?action=submit and compare the OEM size to larger size tires - this will tell you, in MPH, the difference between the tires. Figure out how much your speedometer is off, go to this web site and find a tire that will be "faster" than the OEM that is equal or close to the speedometer difference.

aperently something in the cold-start went all haywire..the choke may have stuck..

Is it happening when your heat or ac is on? The blower motor for climate control may be going bad also many times debri can get in and rub on fan i have pulled them apart to find pens,lighters,matches,foam and tape from factory left in system also.can work.loose and hit fan. See if it stops.when u turn off fan for heater/air conditioner

When you said "...indicator light blinking," I assume you mean "check engine" light is on. Procure a check engine code reader and download the trouble code. When you isolate which component the trouble code is talking about, ascertain its not a faulty sensor. Read the code reader instruction and look up "clear trouble code" to turn off the "check engine" light. Replace the sensor first and see if it stops sending the trouble code. If the sensor is still sending a trouble code (check engine lights up again), then replace the component which the sensor is monitoring.

if the beeping is coming from under the dash panel it may be the main fuel pump relay also I would check all the battery and engine grounds

i would check into maybe a ful pressure regulator or maybe the fuel pump as you said before. you can always get volkswagen to check the fuel presure and run a leakdown test. or do it yourself if you have the tools to do so. the pressure should stay up even after the engine is shut down...

find the code (owner hand book radio section) or contact the dealer service centre (If factory fitted) for the code and enter it into the radio . It is an anti theft device that makes the radios useless if stolen which it reads as if you disconnect the battery.

I think you should replace the ECM after flooding thats where it all begins.

if battery will not hold a charge then there is an internal short and no good. now if battery is holding a charge but discharges while driving then u either have a short or possible alternator problem

Reset the tire pressure warning, same as you would any service issue. Insert key in ignition, hold wrench button and min button, then start engine.