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What is the diference between e-HDI and BlueHDI
#1
Thinking of upgrading my 06 LeBingo to maybe a 13 ish plate automatic one but wondering what is the difference between e-HDI and BlueHDI?

Also anything to look out for on these additive types with Autoboxes?
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#2
Video 
E-HDi - the car equipped with a Star&Stop system that turns off the engine when stopped at a traffic lights, etc.

Blue HDI - the car equipped with Euro 6 emmision system that uses urea (AdBlue) additive to reduce NOX (And can be equipped with a Start&Stop system too).
On a BlueHdi you can see the urea tank next to the fuel tank.


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#3
(09-09-2022, 05:50 AM)Buki Wrote:  E-HDi - the car equipped with a Star&Stop system that turns off the engine when stopped at a traffic lights, etc.

Blue HDI - the car equipped with Euro 6 emmision sistem that uses urea (AdBlue) additive to reduce NOX (And can be equipped with a Start&Stop system too).
On a BlueHdi you can see the urea tank next to the fuel tank.

Thanks for that, one thing that is confusing me though, is that I have seen quite a few references to topping up additive tanks on cars as old as 2010. Does that mean the e-HDI also used an additive (not AdBlu) or did they solely rely on stop / start to just dip into the 120g per KG emissions?
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#4
Older vehicles were not Euro 6 spec, had no Adblue tank, and used an Eolys pouch system slung under the floor at the rear, where the pouch lasted approximately 100k miles, unless it split before that - which was common.
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#5
(09-09-2022, 07:41 AM)LucyLeBingo Wrote:  seen quite a few references to topping up additive tanks on cars as old as 2010. Does that mean the e-HDI also used an additive (not AdBlu) or did they solely rely on stop / start to just dip into the 120g per KG emissions?

All Euro 6 diesel Berlingos (MY2015 on) uses AdBlue. The AdBlue topped up by the owner, 17Liter tank, aprox. consumption 1 liter/1000 miles.
In addition Euro 6 engines uses Eolis additive - 1liter tank , topped up by the garage, aprox. every 100.000 miles.
This is a totally separeted system, which helps to perform efficient regeneration of the particulate filter during a slow urban traffic.


The older (pre 2015) Euro 5 models uses Eolis only.


Out of touch, they can all be equipped with a start-stop system.
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#6
Mine is 2016 berlingo and and uses eolis additive.
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#7
(18-09-2022, 07:59 PM)Lateralus Wrote:  Mine is 2016 berlingo and and uses eolis additive.

Interesting, so is it just an e-HDI or did it get called a BlueHDI?
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#8
BlueHDI (like mine) has an AdBlue tank, and an Eolys pouch system. They both do different things. AdBlue injects into the exhaust stream to cut NOx emissions, and the Eolys injects into the fuel tank, to improve regeneration of the DPF
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#9
Eolys Fluid, on the 2016 van it's mounted and accessible underneath the car near the sill on the drivers side. If you do a lot of stop start driving it won't last more than 50,000 miles. The van will throw up an Adblue issue though when you top the Adblue the management light won't go off. The Euro 6 emissions bits were like a retro fit into the Berlingo and unfortunately the catalytic converter was mounted too far back and didn't quite get hot enough to ensure a clean burn up of the collected particles. Hence the Eolys which helps raise the temperature and burn the collected exhaust emission particles in the catalytic converter. 

When the Eolys is topped up it can raise an issue with the reservoir not having enough pressure. Interestingly if you have the software you can reprogram it to say the car has been fitted a brand new reservoir. Warnings disappear. Personally I think this is a Citroen ploy to make you purchase a new reservoir at 400-600 quid. Like buying third party ink cartridges for a printer.
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#10
The combined cat & DPF unit is straight off the turbo hot side. I can't imagine how they could get it any closer to the engine!

Euro 6 required reduction of NOx levels. The only way to do that, is inject Adblue into the exhaust stream.

Both of my previous vans with Eolys lasted well into 100k miles.

The Eolys is injected into the fuel tank once, each time the cap is opened. So...putting piddly amounts of fuel in, rather than filling up, will use it up quicker.

Stop start driving or short journeys have NO effect once the Eolys has been injected into the fuel tank on filling up.
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