Salvage Car Rebuild Project 2012 Audi S5 Part 3: Car won't start but clicks and has power!

[@SulemanJ-yw6mm]

My local mechanic who specializes in European cars wanted to change the starter, battery, and do an oil change for $2,500. You saved me a ton, thank you.

[@DIYSalvageGuy]

This is what it's all about! So happy to help!

[@dcswings]

the famous pyro fuse

[@DIYSalvageGuy]

More like infamous

[@jaxacdc9554]

Nice job. Always great to find a affordable fix.

[@JustLife-mr8kf]

Mannnnn!!!!!!!!! My car just started!!!!!! Thank youn sooo much!!!!!! You just made my day!!!!!!!

[@DIYSalvageGuy]

Hell yea man! So happy to help!

[@blackisback74]

You saved me 5 hrs from doing a starter. Thanks

[@DIYSalvageGuy]

So happy I could help.

[@bobwilliams4968]

i wonder if you buckling your seatbelt is what set the fuse off.

[@scottb4973]

Looks like the window needs to lower a little first before the top opens. But I don't think that window is moving. Can't wait to see how the body works goes.

[@antonkankare]

I might have the same problem with S7, did you get ignition when the pyrofuse was blown or were you blacked out completely? I have no start after front collision

[@DIYSalvageGuy]

Nothing at all. Easy to test, just jump and bypass it like I did in video.

[@blackisback74]

I'm curious, could I just rig up a jumper wire and then drive it temporarily till the switch comes in?

[@DIYSalvageGuy]

Would it work? Yea probably. Should you do it? No. I wouldn't recommend it.

[@sjajajhshsh1651]

Did you used two set of jumping cables

[@DIYSalvageGuy]

No. You just bypass where the fuse runs with the cable so it doesn't affect it anymore.

[@ArtemGrushetskiy]

Do you know if, in addition to allowing the battery to start the car, this fuse ALSO allows the alternator to charge the battery? In my case it appears the fuse blew while I was driving on the way home - post-accident Audi with airbag light on. Car was driving perfectly fine at the transporter's yard and immediately after I left. About a minute into the drive I buckled the seatbelts and then 5 minutes later random things started shutting down. After I lost engine power and pulled over, the battery was completely drained.

[@DIYSalvageGuy]

This is exactly what happened to the s5. Everything worked and then it blew, but k wasn't driving it. I'm pretty sure it's just connecting the starter and should still charge the car, but this fuse is designed to blow so I'm unsure of all the potential problems. It's an easy enough fix though!

[@ArtemGrushetskiy]

@@DIYSalvageGuy Yeah, thankfully! I've already ordered the part and it should be here later this week

[@antonioswamp]

Its safe to buy this aftermarket part on amazon???.if i buy used OEM part is better deal???

[@bigfinCamaro]

Which airbag deployed? I'm thinking an Audi I'm watching at auction has a blown battery fuse but there was not airbag deployment.

[@DIYSalvageGuy]

Driver seat deployed. The battery fuse is not directly caused by an airbag deployment. The vehicle senses the accident and disconnects the battery to prevent fire.

[@bigfinCamaro]

@@DIYSalvageGuy I have watched a few videos and they have kinda implied that the wiring hooked up to that fuse was directly from the airbag.

[@DIYSalvageGuy]

If the airbag deployed, then yes the fuse will 100% blow but the fuse blowing doesn't mean an airbag deployed. Also curious what makes you think the fuse blew if it's a copart lot

[@mauriciopinon3846]

Was it cranking at all ? My A4 cranks but doesn’t start. It cranks for ever. I was thinking it could be the crankshaft sensor ?

[@DIYSalvageGuy]

No. My car was not cranking at all. If you're cranking, I'd say it is not this problem, but it's easy enough to test with jumper cables. If it's a bad sensor, usually a check engine light will be on.

[@mauriciopinon3846]

@@DIYSalvageGuy hmmm yeah I don’t know. I’m pretty stressed. I replaced both camshaft and crankshaft sensors. It just cranks and cranks. No start. If it happens to start it stalls.

[@king.kthebest6158]

@@mauriciopinon3846 I’m m having the same wax act issue with my q5 did u find out why?

[@jose32301]

I just got a 2010 auidi q5 doesn’t start or nothing just lil click noise but doesn’t start what can it be?

[@DIYSalvageGuy]

This or starter.

[@jose32301]

@@DIYSalvageGuy yea this didint work

[@calebs2x]

I was changing an ignition coil on my 2012 s5 and I went to go start the car, it started misfiring badly so I turned it off. Went to turn it back on again and nothing happened. Do you think this would be still a fix for my issue?

[@DIYSalvageGuy]

This triggers due to an impact. If you changed ignition coil, make sure it's fully connected.

[@misterzee5736]

Hi mate, I am looking to get an RS7 that has been in accident. No airbag or seatbelt has deployed but car is listed as non runner. Has lost oil due to busted front oil cooler and not sure if engine seized or is there any possibility this fuse can blow despite no pyro deploying? Other hopeful cause would be dead battery that cant start it even with a jump pack which has been tried.

[@DIYSalvageGuy]

Hi there. I would say that your non start issue is most likely this reason. The fuse blows to prevent damage like you are mentioning. Good luck buy know rs 7 parts are rare and expensive.

[@theycallmestreets3797]

How did you bypass it

[@DIYSalvageGuy]

Use a jumper cable to connect past the blown fuse. It's shown in the video.

[@theycallmestreets3797]

@@DIYSalvageGuy I'm just confused on are you putting two positives. Or a positive and a negative to the fuse and jumping out from another car?

[@DIYSalvageGuy]

You just use two positives on the same area. You just bypass the fuse. Itself.