[davetg]

Ebay/breakers yard BPGA arrived today and I have just fitted it. Fingers crossed it seems to have cured the problem and everything is working but it will take some time before I am completely confident.

A few observations:-
1) The part number for my car is 9675350280 the part I ordered was 9675350380 which came from a 3008 - they were listed as equivalent on Aliexpress. The new part was missing two fuses that were fitted to my original but it was easy to swap them over.
2) As Ian posted was the experience of others my unit was failing more and more often.
3) While checking the new unit fuses I noticed that the ones that are connected through the "relay" in the unit were connected to the battery feed. I thought this meant that the unit was faulty but after connecting the battery I heard a click and the battery connection to these fuses was removed.
4) After fitting the new unit the electric windows would only go up in stages. The handbook notes that when the battery is disconnected the windows safety anti-pinch function is lost and needs to be reset - this cured the problem. I must have disconnected the battery a dozen times before and never had to rest the anti-pinch function before.
5) The "relay" in the unit is hidden behind a plastic cover and it looks like I will need to drill out some spot welds in the metalwork to get to it. I will do this when I have more confidence that I will never have to refit it.

Ian - thank you so much for all your contributions they have been a great help to me and hopefully anyone else with this problem who finds this thread.

 

[Ian M Davis]

1) The part number for my car is 9675350280 the part I ordered was 9675350380 which came from a 3008 - they were listed as equivalent on Aliexpress. The new part was missing two fuses that were fitted to my original but it was easy to swap them over.

I have found several listings where they claim the 9675350280 and 9675350380 are equivalent. If you look through the servicebox you often find Peugeot have a new recommended replacement part. My guess the __380 is a later replacement for the __208. You usually find that these part numbers are the component manufacture's part number rather than the official Peugeot part number.

3) While checking the new unit fuses I noticed that the ones that are connected through the "relay" in the unit were connected to the battery feed. I thought this meant that the unit was faulty but after connecting the battery I heard a click and the battery connection to these fuses was removed.

That's a bit odd it suggest the relay contacts are normally closed which is not what the diagram suggest. It would be worth checking what the original unit does.

4) After fitting the new unit the electric windows would only go up in stages. The handbook notes that when the battery is disconnected the windows safety anti-pinch function is lost and needs to be reset - this cured the problem. I must have disconnected the battery a dozen times before and never had to rest the anti-pinch function before.

I think that is probably depends on how long the battery is disconnected. The Windows ECU probably has a capacitor that help hold the memory for a period of time. For example when you remove the battery from a key fob it can lose sync with the car but in practice I have found the tantalum capacitor across the battery has a enough charge to keep the memory.

5) The "relay" in the unit is hidden behind a plastic cover and it looks like I will need to drill out some spot welds in the metalwork to get to it. I will do this when I have more confidence that I will never have to refit it.

Yes that will be interesting but I agree make sure the unit is faulty before doing that. I am fairly sure the BPGA is the cause of your problem but there can be other causes for your fault e.g. BSM, BSI or engine ECU. If this doesn't solve the problem it would be worth registering with servicebox and searching for the wiring diagrams. You need to pay to get the actual data (e.g. 8 Euro/hr) but you can usually see a list of what is available before you pay.

 

[davetg]

Used the car a few times today with no problems, early days but encouraging.

The battery was probably disconnected for about a hour while I fitted the new unit so probably explains the electric windows losing the anti pinch data

The old unit is showing the "relay" connected fuses open circuit from the battery feed, I can only think if it is a mechanical relay it is a latching type. I might find out more when I dissect the old unit.

 

[davetg]

An update to hopefully close this thread. When searching the internet for the cause of my problem I found several threads where people had had the same problem but not posted what the solution was - so annoying.

It's now 17 days since the new BPGA was fitted and I have not had any problems so I am confident that was what was causing the problem.

I have taken the old unit apart and there is a mechanical relay and some electronics but it is all encapsulated in potting compound so no chance of repairing it.

 

[Ian M Davis]

Thanks for the update. It was interesting to hear that it was mechanical relay. I wonder why the guy in the video thought it was a solid state relay.

 

[sstevomac87]

Good day Dave,

I am having trouble with my Peugeot 3008. Battery charge fault has come up a few times to the point where eventually the car does not start. I need to flash lights and do various bits of trickery to get it started. It's intermittent. When it initially happened i checked voltage at battery, only showing 12 when car running. After disconnecting battery overnight and managing to start again the voltage was 15. Works for a while, then same fault and problems starting. Usually wont start first thing morning unless battery has been disconnected overnight.

Have you had any further issue since changing out the Pbga?

Kind Regards
Steven

 

[davetg]

Hi Steven,
I am gad to say I have had no more problems since changing the BPGA but I am not sure you have the same fault as I had. If you were only seeing 12V at the battery with the car running the alternator is not charging for some reason.

When you got the battery charge fault was the engine running? When the car won't start does the starter motor turn the engine over?

 

[Ian M Davis]

When the engine is running the battery voltage should be approximately 14V. If you are only getting 12V it would normally suggest that the alternator is faulty. However, given that the fault is intermittent and you need to flash the lights to get the car to start may suggest something else is wrong. The first thing I would do is check the battery earths. Make sure there is no sign of corrosion and that they are tight.

On the alternator there should be two connections: a small two pin plug and the main charge cable. Make sure the plug is pushed in properly and the charge cable connection is tight.

 

[sstevomac87]

Hi Steven,
I am gad to say I have had no more problems since changing the BPGA but I am not sure you have the same fault as I had. If you were only seeing 12V at the battery with the car running the alternator is not charging for some reason.

When you got the battery charge fault was the engine running? When the car won't start does the starter motor turn the engine over?

Thanks for the response gents. I should note that I have very little knowledge on what's under the bonnet of the car. I apologise if what I say doesn't make much sense. Please highlight anything that is confusing.

So the problem started with battery charge fault appearing when trying to start the car. It would appear and stop the car from starting. Wouldnt even thurn the engine. I would lock and unlock the car and then it would work. No battery charge fault. It then got worse over the next few days, it would happen more frequent. One morning it complete gave up, wing mirrors didn't unfold, nothing I did would make it start. I thought it was faulty battery but got it tested and all okay. 12volts. I managed to get it started by just flicking lights and things, just came to live. I checked voltage at batted again, still 12 volts so thought alternator goosed. Disconnected the battery over night incase it didn't start first thing. When I reconnected morning and drove it to the garage, explained to the mechanic and he tested voltage at battery and altenator. Both showing 14.4 or 14.5. Day to day now sometimes on starting car comes up with battery charge fault on starting, sometimes stops it from starting, sometimes it just flashes up and disappears.

 

[sstevomac87]

When the engine is running the battery voltage should be approximately 14V. If you are only getting 12V it would normally suggest that the alternator is faulty. However, given that the fault is intermittent and you need to flash the lights to get the car to start may suggest something else is wrong. The first thing I would do is check the battery earths. Make sure there is no sign of corrosion and that they are tight.

On the alternator there should be two connections: a small two pin plug and the main charge cable. Make sure the plug is pushed in properly and the charge cable connection is tight.

Hi Ian,
Thank you for the response. I'll have a look at battery earth's and cables on the alternator. May take some time and some research before I go digging about, I'm not so confident under the hood. I have a gut feeling it's wiring or something electrical. I don't think its alternator itself. Just from what I've read and what I see, it could be though. The car is only 4 years old and covered 33000 miles. I've had it since new and serviced regularly. Frustrating me that this has happened. I don't want to jump straight into garages and get charged a fortune just yet.

 

[Ian M Davis]

A good battery should measure 12.8V when fully charged. I think the battery earth is the most likely issue. No harm in just looking - for example you may see some white powder where the cable is bolted to the car's body.

BTW If your car is four years old the battery could be on the way out. Mine failed when the car was 3 years old.

Edit
I know you have previously disconnected the battery but I just wanted to check you know to wait 3 minutes after turning everything off and shutting the car door before disconnecting battery.

 

[sstevomac87]

A good battery should measure 12.8V when fully charged. I think the battery earth is the most likely issue. No harm in just looking - for example you may see some white powder where the cable is bolted to the car's body.

BTW If your car is four years old the battery could be on the way out. Mine failed when the car was 3 years old.

Edit
I know you have previously disconnected the battery but I just wanted to check you know to wait 3 minutes after turning everything off and shutting the car door before disconnecting battery.

I had the battery tested and it was all good. A friend of mine who is a bit more car savvy took it out and tested it. Results came back that it was all good. Yeah I disconnect the battery after 3 minutes. When it's day light I'll head out and see if I can see anything with the earthing of the battery.

 

[Ian M Davis]

When you get your problem are most of the electrics such as lights, windows radio working. If so the problem may be in the BSM (engine fuse box). The BSM is not a simple fuse box it has a lot electronics and relays. If you are losing power to only a few things e.g. starter motor solenoid and folding mirrors it can be due to a fault in the BSM.

 

[davetg]

Steven,
Your problem is sounding more and more like the fault I had. If you look at post 9 of this thread there is a picture of a BPGA with the cover removed - there is a stud visible in the bottom left hand corner of the unit. Post 16 shows a picture of the unit in the car with a temporary link to this stud. Can you locate this stud on the BPGA in your car and monitor the voltage on it relative to the battery earth when the fault is present and when the car is running? The stud may be covered by a plastic cover which will slide out of the way.

 

[Mark 64]

I recently bought a 2018 plate 3008 GT Line 3 weeks ago which was running fine with no issues but this week it has started to display the same fault as the original post. The fault has all the same symptoms such as wing mirrors not folding out etc... Although the car is 4 years old it has only done 8000 miles, I don't know why this would now appear. The car is going back to the dealership to be investigated under warranty but should I insist that the the battery and the BPGA are replaced or could it just be the battery as I will assume the car did very little driving of the last four years and the battery may just be in a poor condition despite me driving it daily on 50 mile round trips. Also interested if it could be the relay again not being used extensively is failing.

 

[sstevomac87]

I recently bought a 2018 plate 3008 GT Line 3 weeks ago which was running fine with no issues but this week it has started to display the same fault as the original post. The fault has all the same symptoms such as wing mirrors not folding out etc... Although the car is 4 years old it has only done 8000 miles, I don't know why this would now appear. The car is going back to the dealership to be investigated under warranty but should I insist that the the battery and the BPGA are replaced or could it just be the battery as I will assume the car did very little driving of the last four years and the battery may just be in a poor condition despite me driving it daily on 50 mile round trips. Also interested if it could be the relay again not being used extensively is failing.

Dealership changed out the BPGA and that sorted the problem for me. Battery was fine.

 

[davetg]

I think you need to let the dealership investigate the problem first - a failing battery will be easy to diagnose but an intermittent BPGA fault may be harder to find if it doesn't present while they have the car. Let us know how you get on.

 

[Ian M Davis]

I think you need to let the dealership investigate the problem first - a failing battery will be easy to diagnose but an intermittent BPGA fault may be harder to find if it doesn't present while they have the car. Let us know how you get on.

There is a good chance that a faulty PBGA will be logged in diagnostics.

 

[Mark 64]

Dealership has agreed to replace the BPGA downside is I need to wait a week to get it back until part delivered, fitted and tested.

 

[funmonkey100]

I am currently having the same problems you had but with a Citroen C4 Picasso that has the identical part you have replaced. I am wondering how to even open it up cant seem to find a guide on that unit. I changed the battery last year but I remember I couldn't find a way to open that part up to get it out the way. I am thinking of replacing the part with this. Battery manager BPGA
I have a video and some pics of my problems.

Also if I create a link between the two posts like what you have done would that be a way to confirm that the unit is faulty.

Video Link YouTube - C4 Picasso mk2 2016 Fog Light Error