1985 jetta will not start unless you jump stsart it

SOURCE: 1997 Jetta will not start with abrand new battery!

Dont have a clue about the hazards but the connections on the starter could be bad

SOURCE: 1994 volkswagen jetta won't start sometimes

it sounds like you have a bad connection somewhere, what i would suggest is to take it to a autozone and have them put in on the computer. If it is the fuel filter, it is a quick fix not more than 20-60mins.
-I look forward to your post

SOURCE: Cold temps starter will not turn over the engine

I had same problem with my 03 jetta. I replaced battery to better cca and it did nothing. Each shop I went to had no idea. My friend who is a car guy installed a push button start. He told me his audi did the same thing and that it worked on that car as well. He said something like in the cold something condenses and shrinks and it won't spark, I know nothing about cars, so I can find out exactly what he did if you want. I do know that it works great and the parts were like 15 bucks total.

SOURCE: 1989 vw jetta wont crank. replaced battery still wont start.

Ive got a Jetta 2 CSI and had the same trouble. I then discovered that my coldstart packed up, wich you cant even get at the agents anymore. So If you are in the Benoni area I can fix it for you for 'n reasonable price, and you won't have that trouble any longer. Mine is still starting by just touching the key. 0829484343

SOURCE: 95 jetta wont start

check your fuses under the hood and under the dash
check polarity of battery (if you unhooked booth leads)
is the battery any good?
you probly conected the leads to the starter incorectly (recheck them)

(the following asume your tur n key ignition system is functioning properly)
to test your tur n key system simply hook up a test light to the small lead running to the starter cylynoid "while the wire is disconected" and have a friend turn the ignition over. [dont furget to test the test light first lol]

or even got the wrong starter completly (usaly a store problem)
did you " bench test" the new/used starter befor installing it ?
iv goten brand new starters doa

is the ground strap hooked up ? is there corosian on the battery posts or any of the high amperage conections?

is the cylynoid on the starter or somewhere else under the hood?
cautiously try to bypass the cylynoid ie run a hot wire to the small lead on the cylynoid
(this can usaly be done by jumping from the main red wire on the starter to the hot lead of the cylynoid)

notes: when bypassing the ingnition system (jumping the cylynoid)
DO NOT have the ignition in the on postion and it is best to remove the lead from the cylynoid (incase of a short in the wire's some place)

if nothing remove the large red wire on the cylynoid and touch it directly to the starter lead itself (there will be a fair amount of spark when doing this its normal) but make shur you are conecting to the starter lead and not a gound point as this will cause exsesive sparking that isn't good
dose the starter tur n the engine over
back track untill you find the fault be it starter itself,cyclynoid,wiring,blown fuse,corosion,bad battery,

still cant find the problem take it to a shop!
hope i helped yah

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