Peugeot Forums banner
541 - 560 of 623 Posts

·
Registered
Joined
·
30 Posts
The cheapest option would be a second hand tank. If you get one made before 2017 (unsure of the exact change over date) then the car won't need re-programming. Then it can be a simple DIY job under the car, or fit by any garage. It should take less than an hour to change (see other posts near the beginning of this thread). The only downside to this, is how reliable the older tank will be.

If it is a newer tank, I have read that the programming will need to be done by a main dealer or maybe a Peugeot specialist, and not by a local mechanic as they need access to a Peugeot database.
 

·
Registered
Joined
·
72 Posts
The cheapest option would be a second hand tank. If you get one made before 2017 (unsure of the exact change over date) then the car won't need re-programming. Then it can be a simple DIY job under the car, or fit by any garage. It should take less than an hour to change (see other posts near the beginning of this thread). The only downside to this, is how reliable the older tank will be.

If it is a newer tank, I have read that the programming will need to be done by a main dealer or maybe a Peugeot specialist, and not by a local mechanic as they need access to a Peugeot database.
Hi Tom, that is really helpful. Thank you for that. I don't have anything to jack up the car properly to get under it. But it's been really helpful advice. I might contact my local mechanic and see what they are able to do and the cost before moving on. I guess there is just no way of knowing how long the old (like for like) tank will last to work out if it's worth it.
 

·
Registered
Joined
·
30 Posts
Nowhere that I can find (unless it is in the QR code)!!

Peugeot / Citroen seem to have done an appalling job at labelling these. Some of the individual parts (which you can't get separately!) seem to have numbers and that causes a lots of confusion, but I have checked over the tank and no markings on mine.

As the individual parts can fit several versions of tanks, I suspect that they used to have stick on labels to identify the final assembly. These then drop-off over the years. If you look at pictures of a new tank there is a white label on top and one underneath. Could these be the part numbers? If anyone has a new tank can they confirm?
 

·
Registered
Joined
·
72 Posts
Nowhere that I can find (unless it is in the QR code)!!

Peugeot / Citroen seem to have done an appalling job at labelling these. Some of the individual parts (which you can't get separately!) seem to have numbers and that causes a lots of confusion, but I have checked over the tank and no markings on mine.

As the individual parts can fit several versions of tanks, I suspect that they used to have stick on labels to identify the final assembly. These then drop-off over the years. If you look at pictures of a new tank there is a white label on top and one underneath. Could these be the part numbers? If anyone has a new tank can they confirm?
Ah, That's a shame. I've found a tank from a 2019 PEUGEOT 308 1.5 HDI. But can't work out if it would be the new tank or a tank that doesn't work on my car (2016 Peugeot 308!!) as they don't have any codes on it.
 

·
Registered
Joined
·
72 Posts
Oh, another question... If I replaced the tank with the new tank. Would I be able to drive it to the garage to be reprogrammed? Or would it be undriveable? Hence meaning of I got a new tank only they could replace it?
 

·
Registered
Joined
·
30 Posts
At that age, its the new version so will need programming.

Just be aware that if you do get a second hand tank from a newish 308, mechanically there are 2 versions. The second version will have a different overall number to 9818559380. On some models they have added an Adblue fill point at the fuel flap. So there are 2 additional pipe connections and the filler cap on the tank is blanked off (shown in red below). You'll need the one shown at the bottom of the picture (without the screw driver bits!).
94399
 

Attachments

·
Registered
Joined
·
72 Posts
Ha, I thought that's what you meant. The picture was massively helpful because the one I found that I thought would be great (and cheapish) is the wrong one. I only know that because of your picture. Thank you.

Sorry, quick question, if I did the new tank and it needed reprogramming, would I be able to drive it to the garage with the new tank installed or would I need the garage to install it?
 

·
Registered
Joined
·
30 Posts
To try and avoid confusion, when I say "new version" I mean the internal change that happened in '17/'18 and not the addition of the fill pipes.

I have not tried this exactly, but from my experience of a different fault, I believe the following will happen:
If you fit the new version, the engine management ecu won't be able to talk to the Adblue tank. So you will quickly receive a U029E fault "fault with communication to the deNox system" and I think shortly after that the Eurea fault. After about 5 miles (engine temp reaches 80C) you will also get a depollution error. These faults will not be resettable. After some time (pretty sure 50km) you will get a car won't start in 700miles message. Flashes message on touchscreen every 20s or so, very annoying! Then display counts down to 650, 600,...as you drive. Note even though it says miles I believe it is km, so 31 actual miles reduces range by 50 display miles.
During this time the car drives normally, your just putting out more Nox than you should.
Note in my case, my old tank corroded so I lost communication to the adblue tank, car driven a 150 miles home for repair.
So if I was getting a new tank and fitted myself, I would drive it a short distance to get programmed
 

·
Registered
Joined
·
72 Posts
To try and avoid confusion, when I say "new version" I mean the internal change that happened in '17/'18 and not the addition of the fill pipes.

I have not tried this exactly, but from my experience of a different fault, I believe the following will happen:
If you fit the new version, the engine management ecu won't be able to talk to the Adblue tank. So you will quickly receive a U029E fault "fault with communication to the deNox system" and I think shortly after that the Eurea fault. After about 5 miles (engine temp reaches 80C) you will also get a depollution error. These faults will not be resettable. After some time (pretty sure 50km) you will get a car won't start in 700miles message. Flashes message on touchscreen every 20s or so, very annoying! Then display counts down to 650, 600,...as you drive. Note even though it says miles I believe it is km, so 31 actual miles reduces range by 50 display miles.
During this time the car drives normally, your just putting out more Nox than you should.
Note in my case, my old tank corroded so I lost communication to the adblue tank, car driven a 150 miles home for repair.
So if I was getting a new tank and fitted myself, I would drive it a short distance to get programmed
Trying to contact Peugeot garage to find out how much it would cost to reprogram. But am thinking I'll buy a second hand new tank and install myself. I need to buy a set of ramps but they did be too expensive.

Do I need any special tools? Or is it just a set of spanners?
 

·
Registered
Joined
·
30 Posts
The rear plastic shield (shown below) must be removed to gain access to the tank's rear fixings. Needs a T20 torx for 3 rear screws, a flat blade screwdriver for the 2 front plastic rivets and a 10mm socket for the 5 off nuts (hollows in the middle of the picture). Note the 10mm socket will need an extension bar to reach into the holes that are about 140mm deep. It maybe just about possible to undo these with a spanner held vertically, but with a rusty bolt I doubt it!

94412


If the tank is full of fluid, it would be sensible to drain most of it to make it lighter. There is a drain plug at the front of tank held in by a T25 screw. The tank is then held in with 3 bolts (2x 13mm and 1x 10mm). I used a socket, but think a spanner would be ok. Before undoing these you will need to put something under the tank to support it, so that there is enough room to put your hand* above the tank to undo the wiring and pipe connections at the top of the tank.
*Well kind of both hands really as the electrical connections need the retaining clips levered before they will pull out.
 

Attachments

·
Registered
Joined
·
30 Posts
Just a word of caution:
After the replacement tank is fitted, I'm unsure of how and if the system is filled and bleed. I had trouble getting mine to run until after I had used Diagbox (Peugeot diagnostic tool) to do a manual flow test. After that it started to work, but the issue may just have been bad connections inside the pump assembly.
From comments earlier in this forum, other members have swapped it ok, it would seem by just plugging it in. Can anyone else confirm what they did?
 

·
Registered
Joined
·
72 Posts
Just a word of caution:
After the replacement tank is fitted, I'm unsure of how and if the system is filled and bleed. I had trouble getting mine to run until after I had used Diagbox (Peugeot diagnostic tool) to do a manual flow test. After that it started to work, but the issue may just have been bad connections inside the pump assembly.
From comments earlier in this forum, other members have swapped it ok, it would seem by just plugging it in. Can anyone else confirm what they did?
That's really helpful. Yesterday I thought I was contacting Peugeot customers service to talk to them about it, however, turns out I was contacting Desira who have a Peugeot garage. Anyway, they said there is apparently 2 recalls on my car (the cap and something to do with the catalytic converter). They said they would sort both out for me for free, and then if the error messages are still there after they will contact Peugeot to negotiate if they (Peugeot) would replace the tank. I think they'll say no as I didn't buy it from Peugeot, or have had it serviced at Peugeot, and (being a 2016 reg is clearly) more than 5 years old. But it's worth a try. If they say no, then I'm going to replace it myself with a new tank.

Tom - super thank you for all your advice on this. You've been so helpful. If you're ever near Bury St Edmunds I'll buy you a drink to say thank you.
 

·
Registered
Joined
·
72 Posts
I have one for a catalytic converter as well. If the same as mine it is to with the welding failing.
Really? The lady said something about how they'll look for some holes and if they're there they'll replace the whole thing. To be honest she didn't really know the details and I had no clue either. They said it would be free so I was happy for them to do it!!
 

·
Registered
Joined
·
30 Posts
Yes, I think that the welding rusts and leaves a hole (I suspect at the bottom joint). Let us know what they say about the cat and how you get on with the tank. Cheapest new tank that I've seen so far is £567 from Neobrothers.
 

·
Registered
Joined
·
72 Posts
Yes, I think that the welding rusts and leaves a hole (I suspect at the bottom joint). Let us know what they say about the cat and how you get on with the tank. Cheapest new tank that I've seen so far is £567 from Neobrothers.
That's a good price. I didn't really know where to look. On ebay the cheapest new one is £490, but it's from France. So will likely include tons of import fees. Outside of that it appears to be £750. The cheapest used one on ebay was £380.
 
541 - 560 of 623 Posts
Top