Problems with the S-Max, and could do with some advice.

1) Ruddy seatbelt alarm going off on the drivers seat every minute, despite the belt being plugged in. How can i turn the alarm off or fix it?

2) The usual wipers coming on at 25mph issue. 

On at 25mph and won't go off. Just started yesterday, and I've done nothing to the car. Tried switching the setting on the stalk, which does nothing. Below 25mph, they operate as normal. 

I'm familiar with the F22 fuse pullout fix. I'll try that tomorrow, 

I bought a new wiper relay, but where on earth does it go? Cant find any schematics of where the original one sits and what to pull out and replace.

I read about disconnecting the battery. Will give that a go. What's with the double cabling on the live terminal of the battery? I've never seen that on any car.. On mine, there's a wingnut I can release to allow one cable to be pulled off the positive. This disconnects the power, but do I then need to disconnect the other cable on the positive terminal?

Cheers,

Nick

I'd check the BCM for water damage I think

Cheers Dave. Will do. Are they easy to replace?

Now have the additional joy of a total loss of power. Waiting for the AA to come out.

They're easy to replace, it's just the programming

The AA guy just left.

The battery had gone dead overnight. No idea why. 

No water ingress that he could see. Can't remember if he pulled the BCM to check it or not, but I'll take a look later.

Took it for a drive again, and the wipers are still cocking about.

You need to look for signs of green corrosion on the pins and the board

 

31 minutes ago, DaveT70 said:

You need to look for signs of green corrosion on the pins and the board

 

will do.. thanks.

the wiper relay is built into the bcm

also known as the fuse board under the glove box

sounds almost certain water damage 😞

3 hours ago, Swearwolf said:

the wiper relay is built into the bcm

also known as the fuse board under the glove box

sounds almost certain water damage 😞

From what I saw it's under the bonnet. Relay 11. Mine is a 2009 model.
 

New fault this evening. The engine won't turn off despite turning the ignition off. Had to stall it to turn the engine off. Then the cluster lights wouldn't go off so I had to disconnect the battery.

WTF is going on? Have never had this in a car ever, and I've driven lots of them.

All of this started since getting the cambelt replaced. Any correlation, or something that could have been broken during that replacement?

Cheers,

Nick
 

11 hours ago, nick england said:

All of this started since getting the cambelt replaced. Any correlation, or something that could have been broken during that replacement?

There could be something disconnected, have a check

But it sounds like BCM

1 hour ago, DaveT70 said:

There could be something disconnected, have a check

But it sounds like BCM

Yeah.. I'm going to pull it out at lunchtime and take a look.

I would suggest disconnecting the battery, wait a few minutes then reconnect. Mine started giving all sorts of weird alarms and that's what the AA guy did to clear them. He called it a "dealers reset"

Hey,

Did all that, and the same thing is happening.

Took a look at the BCM, and it appears to be ok. No water ingress or external damage on inspection. Fell short on pulling everything out and inspecting them though, so it's going to the garage this week. Beyond my paygrade.

2 minutes ago, nick england said:

so it's going to the garage this week.

You would be better to get an Auto-Electrician to look at it. Very few garages have specialists who deal with the electrics.

3 hours ago, unofix said:

You would be better to get an Auto-Electrician to look at it. Very few garages have specialists who deal with the electrics.

Will do. Even our garage said the same.

Auto electrician inspection of the board, plugs and pins and yes, it needs replacing/repairing. 

The local Ford dealer quoted me a grand to replace it, and the garage said around 500 if the board could be reconditioned without needing reprogramming.

Try and source yourself a good second hand one with the same part number, you'll need to reprogram the remotes and install your asbuilt files

Thanks Dave, but I'm going to sell it.

What was a fairly cheap runaround is starting to cost me, and it's all coming out of the fund I've been putting together to get my BMW repaired.

If I can claw back what I spent on the cambelt replacement, service and MOT, I'll sell it off with full disclosure.