C5 Tourer 2010

[silvering]

Hi guys. Newby here. I just bought the said car. It has run a lot of km's, 350k to be exact, but i bought it for 850 eur with no rust, broken electric parking brake and not working parking assistance. The electric brake needed new spacers, i changed them, calibrated, all the associated faults are gone. For the parking assistance i am waiting on a rear wiring loom. Otherwise the car runs smooth (with the exception of the front right wheel bearing, but its ordered and on its way). I have suspicions that the suspension needs calibrating, but i have no idea how to do that with diagbox. I just think that the front is a little bit lower than the rear. Anyway, i am attaching some photos from diagbox with some faults, that i think are ghost faults, but if anyone more competent can elaborate them for me, i would be gratefull.



There is also a photo showing communication error with three ECUs, the battery charge status unit i think is dead. The other two i have no idea.. my diagbox version is 7.58. I read somewhere here that it is the most stable one and will cover cars manufactured before 2015. I have found another BCS unit (attaching a photo) but i dont know if its compatible with my car.

The connected one os the old one (maybe the part number is on the other side of the unit, but i didnt want to disengage the battery, didnt had the time today).

One more thing. Somewhere in the photos there should be error U1213. Is it possible to be from the faulty wheel bearing, since it has the ABS ring on it?

VIN: VF7**************[VIN obfuscated, can be read by forum staff]

Thanks in advance for the help.

[GiveMeABreak]

Hi and welcome

You can ignore U1213. This fault is a ghost fault as the vehicle is not moving when the ESP ECU is being interrogated.

The faults regarding the mirror position sensors can be ignored. Citroen removed the feature / option for indexable rear view mirrors in reverse gear as it states in Diagbox. If the BSI software has been updated, it has removed the feature.

I would leave the suspension well alone without a specific reason to change it. The front and rear have different heights by design.

There is a specific procedure for measuring and checking the suspension heights. For 4 cylinder vehicles, here is the correct procedure:

viewtopic.php?p=559127#p559127

Don't change any values in Diagbox without following the guide - as these are not the same as height measurements! They are converted internally by Diagbox.

That Battery Charge Status Unit is specifically calibrated for the X7 - don't fit any other unit. For parts information, we ask for a £10 Forum donation as we are charged for this info by PSA, but it will cover you for official part numbers and parts diagrams for up to 2 years if you are interested. Details below:

A response to your question by a Forum Admin will require detailed vehicle information that requires you to have made a current contribution to the Forum.

Donate Further Information

[silvering]

Thanks for the info, Marc. So basically, feom all the info i gave, the battery charge unit is the only thing i need to address?

I just made a donation. Dont need any stickers. Just help and info

[GiveMeABreak]

No problem.

Ok, so you have the DW10BTED4 - an excellent engine, I've had several.

The battery charge status unit (item 15) has been replaced with a later unit, part number: 9815524580. It costs £99.47 (1173.16 SEK) including UK VAT from Citroen directly - so depends on your local VAT rules.

For your information, I've put a few C5 X7 guides up in the member resource section for donating members, so you may find this worth a look for future reference:

viewforum.php?f=54

[silvering]

I will order it tomorrow from my local Citroen dealer. Do i have to adapt it for the vehicle with diagbox or its plug and play?

I wanted to ask also about the communication errors, electric secondary break and ecu on top of steering column.. should i be worried about these? Breaks works like charm and no errors on the dashboard.. the other one i didnt even knew i had it..

[GiveMeABreak]

Ok, so the unit itself does not need coding, but it is essential that the correct battery fitted to the vehicle is programmed in. So if you have Diagbox, and before you change the unit, I would go into the BCSU after you have completed the Global test. Select the BCSU from the ECU list, confirm and then you will have several menus. Go into Configuration / manual configuration and you should see the various parameters. Basically the battery types are split into levels - L1 to L3 generally. Make a note of the settings / battery level you have already and use this to programme it after you replace it.

This is essential to ensure that the calculations and energy management are correct for the vehicle / battery type.

[silvering]

That would be tricky to do before i change the unit, because the current unit doesnt work, therefore i cannot enter in the menu to configure it, cause on the global test it returns communication error.

[GiveMeABreak]

Ok, so let me have your battery type CCA and AH, I suspect it should be a L2 or L3.

[silvering]

As soon as i get back from work.
Any idea about the communication errors with the other two ecus?

[Gregor]

Hi.

What exactly do you set in BSI? When I replaced my batteries I didn't do anything in BSI and haven't noticed any difference in behavior of the car.

Regards.
Gregor

[silvering]

Hi.

What exactly do you set in BSI? When I replaced my batteries I didn't do anything in BSI and haven't noticed any difference in behavior of the car.

Regards.
Gregor

The type of battery i guess, start power, capacity, rtc, so the battery charge unit knows what battery it has and manage the electrical supply to the different consumers appropriately. Also, just guessing, to calculate when the economy mode should kick in.

I'm adding photo of the battery, guessing L3? Still baffled how to program the type in the BCS ecu, and for the other errors..

[GiveMeABreak]

Hi.

What exactly do you set in BSI? When I replaced my batteries I didn't do anything in BSI and haven't noticed any difference in behavior of the car.

Regards.
Gregor

It's the Battery Charge Status Unit that he is replacing Gregor - this device measures battery temperature and monitors battery health and is used to inform the BSI of the battery status so it can manage the energy saving strategy.

When replacing a battery with the same power and type it won't need configuring as it will be the same battery specifications normally, but as he is changing the actual electronic unit itself, it will need programming with the correct battery type - as this can also affect the charging rates by the alternator.

[GiveMeABreak]

Hi.

What exactly do you set in BSI? When I replaced my batteries I didn't do anything in BSI and haven't noticed any difference in behavior of the car.

Regards.
Gregor

The type of battery i guess, start power, capacity, rtc, so the battery charge unit knows what battery it has and manage the electrical supply to the different consumers appropriately. Also, just guessing, to calculate when the economy mode should kick in.

I'm adding photo of the battery, guessing L3? Still baffled how to program the type in the BCS ecu, and for the other errors..

Ok, so the battery you have should be 720 CCA and 70Ah, which is a L3 battery. The 74AH is ok, but it's a bit under on the capacity side.

Once you have the replacement BCSU in place (making sure you follow the BSI Reset / Battery Disconnect / Reconnect Procedure) you should find that the unit is recognised when you perform a global diagnostic. After this, you can then go in and set the parameters for the battery.

Ignore the U2005 error too - that is also a peed receipt anomaly triggered by the diagnostics. The P1351 is the common glow plug relay error - ignore that for now too - just about every HDi I've seen has that error.

The TPMS errors I'm not sure about at this point, as we don't know if somebody has disabled the system using Diagbox or not... I would deal with the other errors first.

[silvering]

Hi.

What exactly do you set in BSI? When I replaced my batteries I didn't do anything in BSI and haven't noticed any difference in behavior of the car.

Regards.
Gregor

The type of battery i guess, start power, capacity, rtc, so the battery charge unit knows what battery it has and manage the electrical supply to the different consumers appropriately. Also, just guessing, to calculate when the economy mode should kick in.

I'm adding photo of the battery, guessing L3? Still baffled how to program the type in the BCS ecu, and for the other errors..

Ok, so the battery you have should be 720 CCA and 70Ah, which is a L3 battery. The 74AH is ok, but it's a bit under on the capacity side.

Once you have the replacement BCSU in place (making sure you follow the BSI Reset / Battery Disconnect / Reconnect Procedure) you should find that the unit is recognised when you perform a global diagnostic. After this, you can then go in and set the parameters for the battery.

Ignore the U2005 error too - that is also a peed receipt anomaly triggered by the diagnostics. The P1351 is the common glow plug relay error - ignore that for now too - just about every HDi I've seen has that error.

The TPMS errors I'm not sure about at this point, as we don't know if somebody has disabled the system using Diagbox or not... I would deal with the other errors first.

Thanks for the reply. I'm waiting for the BCSU to arrive. I didn't order from Citroen here in Sweden, because they quoted me price of around 200 eur. I found used one in one auto morgue in Norway. Its on its way.

U2005 i ignored as you said. About P1351 i found information that its either the relay or some of the glow plugs. I measured the plugs, only one works. Ordered Bosch 119 mm 4pack.

Two of three communication errors are now gone. I figured that the VCI might not have the latest firmware, so i updated it manually to 4.3.2 and the only wrong that is left is the Telemetric ECU not recognized. I read somewhere that the RNEG has versions without telemetric, so is it possible mine be one of those? I still havent updated the firmware, cause i struggle finding cd burner.

And the last two things i wanted to ask.
Found a thread that states that RNEG supports trip computer data showing on the navi display. Is it hard to enable that, given that my diagbox skills are questionable (but i am good at following instructions otherwise)?

And about the automatic transmission. I struggle finding info about it and want to know whats the procedure for changing the oil and servicing it alltogether.

Thanks in advance

[Gregor]

Hi.
I wondered if anyone has the exact parameters BSI requires for a battery management?

BR, Gregor