Multi Function Switch Replacement T1N Sprinter
Автокөліктер мен көлік құралдары
The Multi-Function Switch, or MFS is a complicated contraption. When it goes bad your headlights might turn off unexpectedly or one turn signal stops working. That's what happened to mine. This video will help you replace that switch, detailing removal of the clock-spring, steering wheel, air bag and cruise control.
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Пікірлер: 36
Robotic hand sound spinning the screwdriver - nice Foley work!
@FloridaVanMan
Жыл бұрын
:O) I thought no one noticed.
Hi, all. Had this issue with random/no turn signals about 4 years ago, read all the forums, cleaned contacts, exchanged relays between them, all pointing to a rather "mechanical" problem, something that had just not worked as before. I finally noticed that in some position of the multi-function switch, everything works (pushed it from different directions with my hands). My conclusion was that plastic deformed in time as that piece is supposed to be pushed by bolts, but these bolts created some leverage. I used some plastic tie wraps to tighten the multi-function switch back to its position at the end that was pushed away from the column by the leverage and the problem is solved since then, no switch replacement, van is from 2000 and the switch is probably the original one. Some may have other issues, but mine was purely mechanical deforming.
Great video Bill. Thank you!
You've convinced me not to do this if I ever need to. The airbag itself is a reason for professionals or people like you to perform this intricate repair. I particularly like the cruise control I call chopstick at my left hand fingertips and just seems extremely functional.
@FloridaVanMan
Жыл бұрын
Always smart to be cautions, even overly cautions when unsure. If you disconnect van battery and the house battery 20 minutes before messing with the airbag it is certainly safe. But if you don't need to, don't play with matches or dynamite.
This video definitely saved my ass today. Thank you!
T25 BIT behind the steering wheel, had to comment too because it drove me crazy for about 20 min
Fyi, took me a good 30 minutes to realize, the screws behind the steering wheel are t25, not t20
@richardli4038
Ай бұрын
i think they are actually t30, but t25-30 would work. i also turned nothing for 20 min
@aleckwright1607
Ай бұрын
@@richardli4038 I was hoping my comment would save you from my mistake, instead we've joined in commiseration
@foxcouleefarms
29 күн бұрын
And mine were T30, and to make things worse, after replacing this unit with a new one, the new one didn't work as good as the last/old one. Grrrrrr UPDATE: It was a lot easier the second time, AND... Operator Error, the fuse block wasn't completely connected to the bottom of the new part.
Awesome video!
Another great video! Thanks!
Nice video Tampa Florida check in
Schönes Video. Hab einen 2005 CDI 316 Camper.
Great video
Nice
I do not have a steering angle sensor. Was that an option or is that a necessary part? Cannot get turn signals to turn off after making turn.
Mine will stop working so I push on the relay and they start working. The intermittent wipes come and go also. Any ideas? Also, do you have a video, or know of one, that explains the HVAC buttons. Can't get air to blow on our feet. Could be plugged up but not sure how to check it. Thanks. I like your straight to the point videos.
@FloridaVanMan
2 жыл бұрын
Pushing on the relay suggests your issue could be in the fuse box. That is an easy part to replace and I don't know any way to troubleshoot it without replacing it to see if the trouble goes away. I hate to throw $150 parts at it, but when the option is several hours of investigation to determine if we still need to throw the same part at it.... Makes sense to just throw do it.
Did hooking the battery up without the air bag not set off codes in the air bag module?
@FloridaVanMan
2 жыл бұрын
No, I think seatbelts will do that and I'm a bit surprised I had no codes when I put everything back together. You might get one but it will clear easily with the AP200 or iCarsoft MBii. Links for both on our products page.
Does this also control the headlights ? That’s what a shop has claimed
@FloridaVanMan
4 күн бұрын
It does. My first time changing this switch was due to my headlights just turning themselves off randomly and they would not come back until they decided* it was time. High beams worked and traffic loved me that long drive home.
Any idea why some of my wiper setting do not work...I think only fast setting works, also right headlight, brights and turn signal do not work... are these signs that my MFS is bad? Muchas Gracias :)
@FloridaVanMan
Жыл бұрын
Yes, almost definitely the MFS.
After replacing my MFS when I hit the lock button on my key fob the front and rear lights only blink on one side. Any idea what might have caused this changed? I'm stumped. Thanks in advance!
@FloridaVanMan
9 ай бұрын
A bad connection in the new switch, most likely. Do the parking lights all work without headlights?
Is the intermittent wiper function part of the switch, or is there a timer/relay for that elsewhere?
@FloridaVanMan
Жыл бұрын
My service manual says the timer circuit is in the steering column fuse-box, and when the intermittent wiper feature doesn't work "replace fuse box". I'm not confident on this answer, but it is right from the troubleshooting of my book.
👍👍👍😁
Hi Guys does anyone have a link for Multi-Function Switch supplier?
@FloridaVanMan
10 ай бұрын
www.millionmilesprinter.com/product-page/turn-signal-assembly
Do you think a bad multifunction switch might cause CAN bus faults? I've been having an intermittent fault where all my cluster lights turn on and my 04 t1n either wont start or goes into hard limp. When this happens sometimes tugging on the steering column will affect the cluster lights and at one point the blinkers stopped working until I jostled the cruise control switch. I will link a video of the light show. kzread.info/dash/bejne/e5iDlKNqf62bdNo.html&ab_channel=AleckWright
@FloridaVanMan
Жыл бұрын
The blinkers stop working still sounds like trouble in the switch, but seeing those lights come on with the brake depressed is a heavy indicator of problems in your brake & tail lights. The wrong bulbs will glow but cause an incorrect resistance when not illuminated. That resistance causes problems with the CAN-bus network. The tack and fuel gauge flaking out could be due to a brake light bulb contact touching both circuits in the bulb socket. These are the correct bulbs: Tail Lights: (top position being #1, bottom #4) #1 7528 amzn.to/3cpvc8g #2 & #3 & High brake light 7506 amzn.to/3srWfFN #4 5007 amzn.to/3Lw2bYj License plate 6418 amzn.to/2NVoTQo Other Lights (that don't effect the CAN-bus): Headlight H1 Low Beam H7 Front Side Markers 3457A Or LED sequential Dome 6411 Front Turn/Parking 2825