Hi Everyone! 

 

New Skoda Superb Hatchback owner here! Picked up a nice 2017 model from a used dealership a few days ago and I only noticed today that the lights inside the boot aren't coming on when the boot opens. All other interior lights in the car, doors and footwells seem to be working correctly. 

I replaced the bulbs in the interior lights, checked the connections and wiring  that I could see and everything there seems to be okay. I then noticed the detachable torch light wasn't working either. I replaced the AAA batteries with new rechargeable batteries and the two LEDs turn on correctly, but when placed back into the boot there is no light. 

 

From what I can tell from doing some YouTube research the next two things I should be looking for/checking is the switch in the boot and the fuse. Annoyingly, my car didn't come with the original manual so I have no idea where either item is. I had a quick look in the boot for a switch that activates the lights when the boot opens but can't find one. Then to make matters worse I've found 3 different fuse boxes but have no labelling/mapping to know which fuse box I should be looking and and which fuse is responsible for the lights in the boot. I'm hoping some of you wonderful people here would be able to help point me in the right direction, otherwise I'm looking at a long, long drive back to the dealership and asking them to look into further. 

https://manual.skoda-auto.com/004/en-com/Models

 

See if you can grab a manual off here, some you can download, others are online.

Thanks. I've found the manual for my skoda, although I must admit they don't make it clear what fuse relates to the boot lights. Only 2 that I can see that are relevant are: 

- 27 Xenon headlights, interior lights

- 42 Boot lid, headlight washers, windscreen washer system

 

However, given that all other interior lights are working I'm starting to think its not a fuse issue as all other interior lights are working and I doubt "boot lid" has anything to do with the interior lights for the boot.

 

Sadly the best source of real information is always the workshop manuals.

 

Unless there's a physical switch for the interior boot lighting that I have never seen, then odds are a wire has broken.

 

Without checking myself, fuse 27 would take out all interior lights and of course Xenon headlight's (you'd notice this)

 

Fuse 42 covers J519 control module usually, and if they failed you again would notice a heck of a lot of failed systems.

 

 

If you plan on keeping the car for a while then erWin Skoda is a nice way to get your hands on repair information/wiring diagrams etc.

 

I shall try to revisit this thread if you need more assistance, as will others.

I don't have latest diagrams for Superb so it may have changed, but the microswitch for the luggage compartment lighting is within the 'rear lid lock unit' F256 on the ones I do have. Such microswitches can fail either mechanically or electrically, although your car seems very young to have suffered such a 'wear and tear' problem.

6 hours ago, Breezy_Pete said:

I don't have latest diagrams for Superb so it may have changed, but the microswitch for the luggage compartment lighting is within the 'rear lid lock unit' F256 on the ones I do have. Such microswitches can fail either mechanically or electrically, although your car seems very young to have suffered such a 'wear and tear' problem.

 

Only bought this Skoda last Friday and noticed the lights issue the other night when opening the boot at night. The 114 safety check they completed at the used car dealership clearly doesn't include checking all lights. I'm assuming the microswitch controls the charging to the detachable torch as well? This doesn't charge whilst placed in its holder in the boot. 

4 minutes ago, Tioli said:

I'm assuming the microswitch controls the charging to the detachable torch as well?

Not sure, I searched my document for 'torch' and 'flashlight' and found reference to neither, so suspect it is a feature newer than the diagrams I have.

@Tioli When you open the boot, does your dashboard show diagram of boot opening if this is available on your screen?

If yes then it should be sending power in theory, but won't if a wire is broke be able to light up of course.

26 minutes ago, varooom said:

@Tioli When you open the boot, does your dashboard show diagram of boot opening if this is available on your screen?

If yes then it should be sending power in theory, but won't if a wire is broke be able to light up of course.

I'll test it after work and see if anything shows up on the dashboard and report back.

2 minutes ago, Tioli said:

I'll test it after work and see if anything shows up on the dashboard and report back.

Best of luck, try every door as well to confirm each appears on dash.

Also are we talking a RHD car?

41 minutes ago, varooom said:

Best of luck, try every door as well to confirm each appears on dash.

Also are we talking a RHD car?

Correct. Its a RHD hatchback 

21 minutes ago, Tioli said:

Correct. Its a RHD hatchback 

Ok, will await your testing later on when you see if the dash lights up to know if boot opens/other doors.

15 minutes ago, varooom said:

Ok, will await your testing later on when you see if the dash lights up to know if boot opens/other doors.

Okay so all 4 doors show as open on the dash but the boot does not at all. Tried opening manually and via keyfob, no behaviour difference.

Well does seem to point towards the little micro switch inside the boot locking mechanism if memory serves correct.

 

The poor car cannot determine boot open/closed and apply voltage to the light's.

 

Hopefully someone else can come along and confirm that could be the logical case shortly.

5 minutes ago, Tioli said:

Okay so all 4 doors show as open on the dash but the boot does not at all. Tried opening manually and via keyfob, no behaviour difference.

Sounds like a faulty micro switch in the latch.

Damn, that's the one part that I have no idea on how to resolve/fix. I've seen a few posts about replacing the boot lid button but nothing about the microswitch or a latch. However, as this was only purchased from a dealership last Friday and comes with a 3 month warranty, I'd presume I can give them a call and get it fixed for free.

Just now, Tioli said:

However, as this was only purchased from a dealership last Friday and comes with a 3 month warranty, I'd presume I can give them a call and get it fixed for free.

Yes they should fix this for sure, my car and others can show on the display the boot being open, so definitely looking like we have our candidate.

 

Give them a bell now explaining your findings and tests, like opening doors and seeing it reflected on dash, but boot is no dice.

Assuming the latch with microswitch is in the moving/tailgate part, it could also be a wire between that microswitch and the BCM, broken in between moving tailgate and body?

 

True @Breezy_Pete but for certain it's something they need to fix.  Hopefully all goes well with the phone call.

1 hour ago, varooom said:

True @Breezy_Pete but for certain it's something they need to fix.  Hopefully all goes well with the phone call.

Agreed, but knowing the motor trade, they'll battle to avoid any cost to themselves. 

1 minute ago, Breezy_Pete said:

Agreed, but knowing the motor trade, they'll battle to avoid any cost to themselves. 

This isn't far from the truth. Phone call resulted in them saying they can book the car in for diagnostics on 8th September, a month away. Coincidentally, this takes me out of my 14-day cooling off period where I am unable to return the car for a refund. Its bizarre that on the day of randomly turning up and buying it they could do a full service and 114 safety check on the vehicle in 1 hour but 4 days later it will take 1 month for the vehicle to look at. I've booked it in on the 8th for arguments sake and followed up with an e-mail essentially explaining that if its not seen this week then I shall be returning the car for a full refund and purchasing a similar car elsewhere. We'll see how it goes.

Not surprised in the least by the last 2 post's at all.

 

Stick to your guns, and hopefully the match you lit under their a7se will do the trick.

I should follow that up and clarify, I didn't mean the 14-day cooling off period but meant returning it as unsatisfactory since it was sold with a fault that I was not informed about prior to the sale. That's if it comes to that point. I just really don't want to wait an entire month knowing that should someone break into my car via the boot, there would be no immediate alarm (as far as I know at least) since car thinks the boot is always closed even when its open.                                                                      

2 hours ago, Tioli said:

I should follow that up and clarify, I didn't mean the 14-day cooling off period but meant returning it as unsatisfactory since it was sold with a fault that I was not informed about prior to the sale. That's if it comes to that point. I just really don't want to wait an entire month knowing that should someone break into my car via the boot, there would be no immediate alarm (as far as I know at least) since car thinks the boot is always closed even when its open.                                                                      

It doesnt mean it was sold with a fault, it simply could of failed after you got the car. Id speak to them and get to do a fairly straight forward repair on it. As long as thats the only issue of course. 

This evening I decided to have a little rummage through the fuse box (just because I was curious). So, using this link: https://fuse-box.info/skoda/skoda-superb-b8-3v-2015-2018-fuse-box-diagram#2017

 

I used the 2017 image from the page and checked out my own fuse box. Now, correct me if I'm wrong by F50 is empty and according to the mapping, 50 should be the fuse for "Opening the boot lid", now I'm assuming this is referring to the electric opening of the boot? Which I don't have, but its not exactly 100% clear. Its most me hoping for a simple fuse fix but I'd appreciate someone double checking for me.