Car won't start consistently.

Check the videos in the link

https://www.google.com/search?q=2013+VW+Jetta+Wagon+security+reset

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Question moved from Spanish car maker 'Seat' to Volkswagen Jetta.

Volkswagen Jetta (2006) - fuse box diagram - Auto Genius

https://www.autogenius.info > volkswagen-jetta-2006-f...
Sept 23, 2019 - Instrument panel ; 32, Fuel Injectors (gasoline), 10 ; 32, ECM (diesel), 15 ; 33, Headlight washer system, 20 ; 34, Engine control elements, 10.

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  Volkswagen Jetta (2003 - 2009) - fuse box diagram - Auto ...

  https://www.autogenius.info > volkswagen-jetta-2003-2...
  Jan 28, 2020 - Volkswagen Jetta (2003 - 2009) - fuse box diagram. Year of production: 2003, 2004, 2005, 2006, 2007, 2008, 2009 ...

2006 Jetta Fuse Box Diagram in 2021 - Pinterest

https://www.pinterest.com > Vehicles > Cars
2006 Jetta Fuse Box Diagram Volkswagen Jetta 2008, Vw Jetta Tdi, Jetta Wagon,. T. Tyrese. More information. Volkswagen Jetta 2008 · Vw Jetta Tdi.

Hi Tanner, The link below shows the diagram for a 2005 jetta 2.0L 4 cyl motor firing sequence 1 3 4 2.......CHEERS..
firing sequence for VW 2004 Jetta 2 0l 4cyl Google Search

35lbs is required. give them more air.

Sorry no inertia switch. When VW crashes, airbags go and safety belts strain gauges go. It comes as a Kit from VW. After replacement, crash error need to be erase from memory with diagnostic tester. See how to it at http://volkswagen-polo-highline.blogspot.com

You need to charge your battery up more. Either get a battery charger or leave the jumper cables hooked up for a longer period of time.
Your battery was probably completely dead. You might even need a new battery...they really don't like to be completely drained.

Very difficult. You have to open the inside access door on the drivers side, remove the amp and wheel well cover, pinch the tabs and the bulb cluster will release. The taillight assembly is bolted from inside of the car, so it can't be done outside.

Probably a bad COIL-PACK

try replacing the sending unit, It is easy but did it when the car is cold

I know that some european cars have an "immobilizer" as part of their anti-theft system that frequently malfunctions in this way. Have it swapped out if your car has such a module.An independent shop may be better for this.There's a relay called "Relay 109" that may cause this also-it's only in Jetta TDIs.Here is part of a post from a dissatisfied owner if you continue having problems:I had TWO of these bought back by Yugowagen and you can do the same-WITHOUT an attorney!! I had the 2 cars for six months and over 12K miles total and was not charged a dime for use!! They gave me the cash I paid in, the value of my trade, and the amount of the payments made, and paid off the loan balance!! Hopefully this number is still good- I've posted it several times on this site and it might have been changed. Contact Jason Tosetti at VWOA at (248) 754-3787. His FAX number is (248) 754-6504. Jason is the VW drone that handled my cases. Also, another dissatisfied VW owner had posted the number of another VW exec somewhere on this site. And yes, the Volvo V40 has been FANTASTIC!! If the S40 sedan and V40 wagon still have the $4K incentive you can get a killer deal!! My car stickered for $29,385 and I got it for $23,500 !! And the car is a much more refined vehicle than the Yugowagen! Good luck!! And, by the way, VW DOES offer loaner cars-the dealer must call the district office to get it authorized which is no problem. I had 5 loaners during my 6 month nightmare.