2.0 Hdi Additive Fluid?

[delart]

Hi on the way home to night this flashed up Particle filter additive fluid to low, and service light came on so how many miles can I do before I get it filled, and how much should I expect to pay for it to have some more fluid added? Thanks

[Johndouglas]

I would get it refilled ASAP. But not only does it need refilling, the ECU needs to be reset by Lexia otherwise the computer won't know it's been refilled.

[paul.h]

A complete fill is about 3 litres so about £100 for fluid (plus labour if you do not fill it yourself). If you do not have the ecu reset you will continue to get the low level message but people on here have said the fluid will still go in so the dpf will not block up. This is since the level is not actually measured, just calculated on the number of fuel tank fills.

[delart]

Thanks, so am I right in saying that it puts some dpf fluid in every time the fuel cap is removed irrespective of amount of fuel put in? Will any dpf additive fluid suffice?

[paul.h]

I am not sure how much is put in each time, maybe it uses the fuel level to adjust the amount but I do not know. You need to get the right fluid since there have been some changes over the years and they are not all compatible with each other. The eolys tank pipe connectors should have coloured rings on them that help determine which fluid is used.

[MikeLane]

Is it Eolys for Mks 1 & 2 and AdBlue for Mk 3 (X7)?

[Johndouglas]

Is it Eolys for Mks 1 & 2 and AdBlue for Mk 3 (X7)?

M3 X7s still use Eolys.   It's only the very latest ones which are Blu - probably from early 2014.

[paul.h]

I think the type of eolys fluid has changed over the years even before adblue came along. The eolys was dosed in the fuel tank to burn off the ash in the dpf but the adblue is dosed in the exhaust to reduce nitrogen oxides.