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Replacing Your Ignition Switch and Lock Cylinder
 
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Pelican Technical Article:

Replacing Your Ignition Switch and Lock Cylinder

Steve Vernon

Time:

3 hours3 hrs

Tab:

$50 to $150

Talent:

**

Tools:

T20 Torx, trim removal tool, cold chisel and hammer

Applicable Models:

VW Golf (1999-05)

Parts Required:

New switch or lock cylinder

Hot Tip:

Move the driver seat back

Performance Gain:

Working ignition
This photo illustrates the ignition assembly (blue arrow) with the steering wheel and switches removed.
Figure 1

This photo illustrates the ignition assembly (blue arrow) with the steering wheel and switches removed. You can see the switch harness (red arrow), switch (yellow arrow, inside assembly), the inductive coil harness (green arrow) and the ignition cylinder (purple arrow).

You will need a firm paper clip or 3/36 drill bit to inset into the hole in the ignition cylinder (red arrow).
Figure 2

You will need a firm paper clip or 3/36 drill bit to inset into the hole in the ignition cylinder (red arrow).

Gently separate the connection for the inductive coil (red arrows).
Figure 3

Gently separate the connection for the inductive coil (red arrows).

Insert the key and turn it 90 degrees to the
Figure 4

Insert the key and turn it 90 degrees to the "on" position (red arrow).

Insert your paper clip approximately an inch and half into the hole in the cylinder (red arrow).
Figure 5

Insert your paper clip approximately an inch and half into the hole in the cylinder (red arrow). The clip will release the locking ring (yellow arrow) in the cylinder and allow you to pull the cylinder out by the key. You may need to wiggle everything around to get everything lined up, just take your time and don't try to force anything.

To replace the switch disconnect the switch harness (red arrow).
Figure 6

To replace the switch disconnect the switch harness (red arrow).

You will need to scrap the factory sealing paint off of the ignition assembly if you have the original switch, then use a small flathead screwdriver and loosen the two screws holding the switch in place (yellow arrows).
Figure 7

You will need to scrap the factory sealing paint off of the ignition assembly if you have the original switch, then use a small flathead screwdriver and loosen the two screws holding the switch in place (yellow arrows).

Pull the switch from the housing (red arrow).
Figure 8

Pull the switch from the housing (red arrow). Installation is the reverse of removal.

If you are replacing the whole assembly you will need to disconnect the ground wire (yellow arrow) and then use a clod chisel to break off the shear bolts (red arrows).
Figure 9

If you are replacing the whole assembly you will need to disconnect the ground wire (yellow arrow) and then use a clod chisel to break off the shear bolts (red arrows). You can also grind or drill out the shear bolts but that makes a mess with all the shavings. Installation is the reverse of removal. Shear bolts are properly torqued when the head of the bolt breaks off.

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Comments and Suggestions:
Don Comments: 2001 vw jetta, ing key rotates normal. Vehicle operates normally, however when I shut it off the engine shuts and when I remove the key it's appears to be in an accessory mode. Radio won't shut off, door locks won't operate with remote and alarm doesn't set. I'm initially inclined to believe the electrical section of the ignition is faulty, but is it possible the key cylinder is also bad? If so will a reset be required if I only replace the electrical portion? I think the key will require reprogramming, but not the electrical part?
February 1, 2017
  Followup from the Pelican Staff: I would assume it is the switch (electrical). If key is in off position, check if the switch is still sending power to the components. - Nick at Pelican Parts  
Dom Comments: Thanks for the reply nick.

Part 2:

When the lock cylinder is removed, I have used a flat head to rotate the ignition and there is an abnormal end feel. There is 1 accessory power switch when initiating the turn, but the rest of the rotation is free of any resistance including a "springy" or normal end feel. The key just rotates to a dead stop. You agree this sounds like the tumbler is bad and not the ignition switch itself? Where can I buy a new tumbler? or do i need to remove and repair myself if that is even possible?
January 11, 2017
  Followup from the Pelican Staff: Good question. The first movement should have a notch to overcome, then the rest should be smooth. If the lock cylinder feels normal when removed, the issue could be with the column. You should be able to replace and separate it from the column. Going by memory, it pulls straight off once the clamp or fastener is removed.

Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Dom Comments: Hey,

Recently, My car would start due the the ignition not engaging. My key had the ability to turn all the around in the cylinder, although there was no cranking. When i took my key out of the car i lost all control of electronics. the car would not turn off when the key was removed, all electronics in the car had power to them, and my key fob no longer worked. since then, I disconnected the battery, removed the ignition switch, and lock cylinder. When I took the lock cylinder out i used a flat head screwdriver to put the ignition into the off position. I now have control of electronics and key fob is working again. Although, the key will still just spin inside of the key cylinder with out the last spring loaded engaging part of the ignition. I am waiting on an ignition switch so i can replace the old one, as everyone is telling me that is the problem. My question is it possible the ignition housing/tumblr is bad because i am not getting the spring loaded engaging ignition end feel when spinning the flat head screwdriver in the tumblr with the lock cylinder removed.
January 11, 2017
  Followup from the Pelican Staff: Yes, the tumbler does sound faulty. When you use the flathead, it rotates and stops as expected? - Nick at Pelican Parts  
kevin Comments: I am also having trouble with my car staying running, no obd codes present. i bypassed immoblizer and same thing. what now?
December 10, 2016
  Followup from the Pelican Staff: You need to program the immobilizer, it can;t be bypassed. - Nick at Pelican Parts  
kevin Comments: you dont need to break ooff the shear bolts, i used a chisel to turn them loose, then replaced them with hex screws
December 10, 2016
  Followup from the Pelican Staff: Thanks for the additional info and feedback. We appreciate it.
- Nick at Pelican Parts
 
Evie Comments: I have 03 jetta and my key wont go in the ignition anymore, seems like there is some sort of plastic blocking the passage for the key to go in fully. I just ordered a new lock cylinder.. My steering wheel is locked and i have no way to unlock it. The dealership said i need a new steering lock column. Is this neccesary? I need an experts second opinion. Thanks
October 28, 2016
  Followup from the Pelican Staff: it could be. if the lock is jammed, you won;t be able to get a key in or steer the vehicle. - Nick at Pelican Parts  
Ginity Comments: Hi I'm having trouble starting my Polo 1.4tdi 2003, the starter solenoid was faulty and short circuit something but I don't know which part is faulty maybe a relay or ignition switch...There's no power to the starter wire coming from the ignition but everything else lights up on dash. Also which relay is for starter if there's any. I replaced the starter and battery read 13.2 volts. Thank you
October 19, 2016
  Followup from the Pelican Staff: I don't have wiring for your vehicle, so I can't advise on the wire locations.

Check if there are fault codes first, possible start is being blocked by immobilizer. If no codes, check the circuit for the starter solenoid. - Nick at Pelican Parts
 
Mike Comments: To change ignition lock cylinder on 2002 vw gti is it a must to remove steering wheel.
October 3, 2016
  Followup from the Pelican Staff: Correct. - Nick at Pelican Parts  
bleon09 Comments: I installed a new housing but am using the same cylinder for my key. Does it still need to be reprogrammed? Car starts but then dies immediately and one locksmith said I may have missed a part from the old housing that's goes around the cylinder?
August 17, 2016
  Followup from the Pelican Staff: Starts and stalls means it is a theft issue. You will need to program the theft on the vehicle. - Nick at Pelican Parts  
RonD Comments: 2002 VW Beelte key turns all the way around I can't release cylinder from housing with wire as discussed above called dealer dealer said I would have to bring it in tech would show me where to cut hole in house ing to release cylinder but since the key won't turn I can't release the gear shift cable if I could I wouldn't hav to take it in to the dealer just purchase a cylinder and that would be it can you help as where to drill or cut to release the ignition cylinder Yr help would be much appreciated Thanks n Advance
July 19, 2016
  Followup from the Pelican Staff: I'm not sure of the location. It would be where the locking tab is, so you can release it without the pin. - Nick at Pelican Parts  
ringding Comments: Thanks for the clear instructions, they helped me get sorted... I took longer than 3 hrs. but all good now.
May 26, 2016
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
powers3081 Comments: Hey guys, I have a issue. My 2006 Audi A4 was being stored at a "friends" Garage. The guys 20 yr old punk nephew stole my key.
Anyhow, i pulled one from a 2003 A4. will this swap work for me?
Thank you for your time.
Powers
March 6, 2016
  Followup from the Pelican Staff: No. You will need akey that is coded to your vehicle or it will not start. - Nick at Pelican Parts  
Jody Comments: Hi, I have an '04 touran, I bought a new barrel and key from a breaker, fired it and now it won't run. I was told I need to go to main dealer and get a virgin chip for the key and for the ring on the barrel, is this true coz it's beginning to cost me a small fortune for an old car. Thanx
March 5, 2016
  Followup from the Pelican Staff: Yes, the theft will have to be programmed or the vehicle will not run. - Nick at Pelican Parts  
Eddie Comments: What size does the chisel need to be to remove the shear bolts?
January 28, 2016
  Followup from the Pelican Staff: 10mm wide. - Nick at Pelican Parts  
Kurt Comments: 2007 Jetta Wolfsburg. I have to replace the ignition cylinder because of pieces inside sliding in the path of the key. Can I just replace that part? Do I have to have the original key recoded to that new cylinder? The part I am speaking of is 107905855CF. What else do I have to replace, anything? Thank you!!!
January 22, 2016
  Followup from the Pelican Staff: If you buy a lock cylinder keyed for your vehicle, you can install and it should work right away. - Nick at Pelican Parts  
mira Comments: i can't get to the shear bolts. there is a housing around the column that i cant see how to remove. its the housing that latches in the wiper/cruise/signal modules. VW Touran
January 8, 2016
  Followup from the Pelican Staff: You will have to drop the steering column down for better access. I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
mushbrain1 Comments: i can't get to the shear bolts. there is a housing around the column that i cant see how to remove. its the housing that latches in the wiper/cruise/signal modules. in the photo's above the piece isn't on the column. part# 1K0905841
December 6, 2015
  Followup from the Pelican Staff: What vehicle are you working on? - Nick at Pelican Parts  
max Comments: I just replaced the ignition housing and switch, now the car starts then quits. Won't run. help.
September 10, 2015
  Followup from the Pelican Staff: Check the Dme for fault codes, start could be blocked by immobilizer. You will need to program the keys if that is the case. - Nick at Pelican Parts  
good Comments: I just board a used ignition key to replace my lost key. for golf 3. i was told that i must program it with the new one before it could work. how do i program it?
September 1, 2015
  Followup from the Pelican Staff: Using a factory VW scan tool along with the theft code. - Nick at Pelican Parts  
Maxwell Comments: I have installed a used ignition system in Golf MK6 from 2011 golf into a 2009 golf, however, car won't start. Does it need programming/coding? New ignition system was certified working and it was a complete system of eight 8 components including barrel, key, ECU/computer box etc. Please help.
August 2, 2015
  Followup from the Pelican Staff: It has to be programmed to match the VIN of your vehicle. May not be possible on your year. Check with a VW dealer. - Nick at Pelican Parts  
Thomas Comments: IGNITION SYSTEM AND KEYS
November 5, 2014
  Followup from the Pelican Staff: That will have to come from VW. - Nick at Pelican Parts  
Thomas Comments: my ignition system is broken,and i need to know that how can i get it ,i want to buy or order it but i dont know how;its very agent pls help
November 3, 2014
  Followup from the Pelican Staff: Give our parts specialists a call at 1-888-280-7799 and they can help figure out which part or repair kit you need.
- Nick at Pelican Parts
 
andrewjpan Comments: Is there a way to remove the tumbler or the reader coil from the barrel?

I have made an engine swap in my VW Bora and my old key and coil does not work with the donor Immobilizer and key.

I now have to use 2 keys, one for the ignition and the other to open the doors FOB remote.
October 21, 2014
  Followup from the Pelican Staff: NO, it is not the coil. It is the DME and other components the Immobilizer is stored in. You will have to program the vehicle with matching modules. - Nick at Pelican Parts  
ricardo Comments: hello i just want to ask if i remove the the immobilizer reader coil . do i need to change the key or computor box

thank you
September 14, 2014
  Followup from the Pelican Staff: The coil does not have to be coded. - Nick at Pelican Parts  

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Page last updated: Sun 6/25/2017 02:35:56 AM