VW Golf mk4 TDI relay 109 removal and install
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- čas přidán 7. 11. 2019
- In this video, I show where the relay #109 is located and how to remove and install it. If your VW is cranking over but won't start, then this could be the problem. The part number is 1J0 906 381A. Fortunately this relay is inexpensive and it's a good idea to carry a spare just incase.
Link for relay 109:
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Hi don’t no if you can help fitted a new turbo now the actuator is not opening but opens when I do it with a computer
2003 TDI ALH , wont crank over at all, battery volts drop a bit when i turn the key but no starter or starter solenoid sound at all. New battery and fuses checked. If i jump the solenoid the starter spins but wont engage
Matt BozAwesome - Maybe you have a bad starter? I've never had that happen to me before. When was the last time that it started? Have you replaced anything recently?
@@Corysdiyauto it started and then died for the last time on video. Sounded like the battery was dieing right before it stopped, then i put in new battery and nothing. No click nothing. I thought the same, but was weird the starter still rotated when i jumped the solinoid
@@BozAwesome - Maybe you have a bad connection somewhere? I would check all of the wiring that is connected to the starter. Look for frayed wires and loose connections.
Thank you Cory your video was help me to solve my problem thank you very much
Djelmami Noureddine - Thank you!
What was your problem? Starting engine?
Thanks for the video. I'd like to see the exact position of the pins when presenting the part for re-installation - it's a real fiddle in a confined space. Do you know whether it's the same position for a right hand drive Golf?
nickythom5 - I am not sure if the relay would be in the same position in a right hand drive model. I would just look in the same place that I did.... just on the opposite side. Look for that gray relay that's labeled 109. Hopefully yours is easy to find.
@@Corysdiyauto trantlation franch
What’s relay 109 for ?
Malvis Millers - Relay 109 is the main power supply relay. If this has failed, then your engine will crank over, but not start.
I drive the 1.8t and mine doesnt have a 109 relay but cranks but wont start?
My car is cranking over but not starting but my windows and dash lights also aren’t working... I have battery power and a new alternator but people told me to check the 409 relay because for a couple days I could pull that out and put it back in and my car would start. Now it just cranks but won’t turn over. I have a 2000 vw golf
Foxy Venom - I would definitely replace the relay because it sounds like it's faulty.
What code did you have before
No codes were present. This was replaced as preventative maintenance.
Hi I have a golf 1.9 tdi
I touched one of the wires near the relay and there was a spark....
And now the car's lights are working but the car won't start
I would appreciate an answer 🙏
Check all of your fuses first.
Why my mk4 golf sdi have a relay 109 and it doesnt have a fuel pump in the tank?
Kurt Vella - These diesels don't have fuel pumps in the tanks. The injection pump pulls fuel from the tank. This has nothing to do with relay 109.
Skoda Octavia 1.9 TDI ALH 2005. I had a sudden engine stalling, engine vibration, misfire, Fuel quantity adjuster N146 upper and lower limit reached errors. I checked everything and all are good. Finally figured out that the relay 469 is Faulty. Part number is 6Y0 906 381. I could not find a new relay. Can I buy relay 109 with the part number 1J0 906 381 A in lieu of 6Y0 906 381? Are they the same?
Hmmmm interesting. It looks like they have the same pins. Maybe they are interchangeable? I'm not 100% sure on that though.
@@Corysdiyauto Thanks for your response.
My glow plugs were all bad . I replaced them all. I replaced the wiring harness. The relay seems to work. I can see it working with the cover off. When I turn the key on, the voltage at the wiring harness reads 12 millivolts, and the amperage reads 45 amps. I thought it was supposed to read 12 volts. Any ideas?
Kevin Muth - Could be a faulty glow plug relay 180, not 109. Relay 109 is the power supply relay.
Anyone able to help me .. when I turn my key my clocks are dead and fuel pump dosent kick in ..
But lights radio and everything works even if I turn on my lights it shows on my clocks .. the engine sounds healthy when I turn the key and batter is brand new and all fuses are perfect
Malvis Millers - What engine do you have?
What year it's you mk4 TDI right ? What year let me know thank you please so I know it's the same location as mine thank you
Edyer H - It's a 2001.
Thank you I checked but mine it's 2006 pd engine , check the relay it's said # 103 tho
@@edyerh9287 - Relay #103 is a glow plug relay. I'm not familiar with the mk5 setup, so I don't know where your 109 would be? I know that sometimes people take out relays and don't put them where they are supposed to go. The same goes with fuses too. When I first got my mk4, there were so many things that weren't right due to unknowledgeable people working on it. These are great cars if maintained and cared for properly.
Is that a fuel pump relay
No, it's the power supply relay.
Hello, I got golf mark 4 02 plate diesel it start but drive for min it will cut with no warning just battery’s light and den it won’t start Wht could da be
Sam Khan - It starts sometimes then?
Cheer for replying, I figured out the issue it was fuel pump relay
@@SamKhan-op6js - Great, I am glad that you got it figured out.
From today forward I'm going to refer to this upside down relay as 601 😏
Haha, you'd think they would mark the relay cover right side up. I know it's probably used in many different applications, but still.
If it doesnt start but makes a clicking noise is it the relay or something else
zedz65 - In that case I would check the battery first.
Hi I drive a a Polo 1.9tdi (ATD)The car cranks but doesn't start and there's no power to the injectors...could the relay be the reason??
Modisha Jobo - I'm not familiar with the ATD. Are you sure that you are getting fuel? The relay could be the issue, but there are other things that could contribute to a "no start" problem. Have you replaced the fuel filter recently? The relay is inexpensive, so you could replace that first.
@@Corysdiyauto no I haven't replaced the filter
Hmmm my mk4 is different from yours , i got a OEM ECU fuse but mine says 428 on the fuse and its Gray colored .
Do you mean relay when you say fuse?
@@Corysdiyautoyes , mine says 1J0906381B and its gray , i have a 12 valve vr6 engine though .
Where is your relay located?
@@Corysdiyauto same spot as yours in the video , mine is supposedly in the number 12 fuse spot , the old one i see is a large black one like the one in your video , J317 Terminal 30 voltage supply relay .
@volkswagenvr6468 - I guess the TDI setup is different then.
hi，i have same problem with my mk4 1.6 sr。but at the same location i cant find the109relay but 173relay。
so which relay i need to change？
I'm not familiar with the 1.6sr, but it's definitely not relay 173, because that's for the daytime running lights. Do you hear the fuel pump when you turn the key on?
@@Corysdiyauto @Cory's DIY Auto thank for your reply，I will check it，so if not work，the problem is 409？
I think you mean 109? I don't know where your relay is located in that car.
@@Corysdiyauto I don't see the 109 one my car（mk4 1.6sr）
@@jasonbello1408 1.6 Sr have 409 for fuel pump and 173 is for parking headlights so on.
My Golf IV is shocking while driving sometimes. After a while the engine is going off. I can restart again but the shocking becomes worse and then the Bobine dies. This happens over and over again. Can this be the 109??
B-RJ - What year is your Golf? Is it a diesel or gas model?
Cory Mondics Gas of 1998
@@b-rj1171 - I'm not familiar with the gas models. It could be a fuel pump problem?
Cory Mondics I was thinking about the Crankshaft Sensor. Could this be it?
B-RJ - It could be?
If the motor sometimes starts is this fault possible reason?
Sime Marusic - It could be? I would just replace it anyways. It's not expensive and it's easy to do.
@@Corysdiyauto thanks for the video. i have a 2000 golf gls 2.0. mine has literally been dying as i am driving, i swapped in another used fuel pump and it did it as well. now the original pump has 210,000 miles and the one i swapped has 155,000 miles on it. i ordered a new pump, because by simply tapping on the fuel pump gently car fired up for both pumps when they failed. but i will order new relay to throw in the glove box.
@@8SEC6SPD - That mileage is impressive for a 2.0. Good job on diagnosing the fuel pump issue. Thanks for watching!
i have a relay 100 i dont see a 109 please help
i have a 2002 jetta tdi alh
Tom Green - That's odd, I thought that the gas models had the 100 relay and diesels have the 109?
@@Corysdiyauto i went back and checked again , i have a relay 100 as well as 109
my car will crank but wont start , it happened randomly, idk what to do i dont think my relay is shot bc i see the glow plug light as well as every other light , im tried alot of things and nothing seems to work i even did the fuel filter as well as primed it
@@tomgreen749 - Alright, relay 100 is for the indicator lights, turn signals, etc. That one isn't your problem here. Relay 109 is cheap, so I would just replace it. You can try to take it out and tap it on something hard and then put it back in to see if that works. Sometimes these relays just get stuck. That could be the case here?
You missed the important bit of removing the relay.
You just have to pull it straight out. Sorry about that.
@@Corysdiyauto wow fast response.
On mine it’s not the case. One side seems to be a latch that you need to get a nail in to push away from the relay. Meaning two hands awkwardly pressed together, a dislocated shoulder and it slips out nicely…. Honestly VAG don’t make it easy do they.
@@segov2860 - That's odd that yours is setup differently. I agree, VAG makes some things difficult, but I love the car!
what is for? is it for glow plugs?
Eric Mkhonza - No, it's the main power supply relay. When you turn your ignition on it sends power to many different areas to allow the engine to start. I believe that it does send power to the glow plug relay (180).
@@Corysdiyauto thanks Cory
@@Corysdiyauto where is 180 located?
@@kcummo - What year is your VW? Mine is under the dash in my '01.
@@Corysdiyauto 2001. I looked at a schematic and it looks like the 180 is to the left of the 109