abkubas

Hi - I recently bought a 2014 E250 bluetec and the add blue light just came on. Being new to a diesel, I wondered what product to buy and where (does it need to be MB?) and how much was needed? Appreciate the help!

JALLEN4

Any large parts store or even Walmart will sell ad blue usually in 2.5 gal. containers. It is easy to put in and much cheaper than MBZ. Peak is one brand but it is all basically the same product.

abkubas

Thanks so much for the quick reply! Will the warning indicator also shut off once added? It says I have 10 starts remaining and wasn't sure how that worked. Also how much is generally needed when the warning indicator comes on?

JALLEN4

Yes, the light will go off when ad blue is added. The system holds around eight gal.(?) and will usually last about a year. One 2.5 gal. container will normally last a few months. It would be more than safe to add two containers at this point. There is no benefit to filling the system completely. The dealer will most likely charge you $100 plus to fill the system at service time. A 2.5 gal container at a parts store will cost 11-12 bucks and comes with a filler nozzle. You can also buy from a pump at most truck stops for even less if you are an adventurist.

DanD.

I do buy AdBlue from Volkswagen dealer, its the same ISO code as MB is required 100 times cheaper. Its the same AdBlue what MB, VW and Audi are using in their diesels.

JALLEN4

By everything I have read, adblue is adblue. I can find no reason why buying it at the cheapest and most convenient place would put our vehicles at any risk. Many have said the product at VW works with no consequence.

DanD.

Agreed. As long its in ISO 22241 it can be from any store. I do buy it from VW simply because its on my way and it cost as much as at any auto parts store.

larrypmyers

Jallen's advice is right on.

Don't allow anyone to convince you that M-B branded diesel exhaust fluid (AdBlue) is required in your vehicle. There are more brands on the market than can be counted. And without regard to brand all def is comprised of about 77% water and 33% urea. The primary concern when buying def is it's purity. Look for the API or ISO logo on the container.

Servicing your def tank is a simple task that can be compared to servicing your windscreen washer tank.

The "ten start remaining" narrative your seeing is telling you that unless you service your def tank, after your tenth start your vehicle will no longer start.

In order to comply with Tier II emission standards the BluTEC diesel is equipped with a highly engineered pollution control system. It includes several sensors, filters, a pump, tank, heater, catalytic converter and of course the requirement to periodically replenish the tank. The system can be problematic, especially if the vehicle is operated contrary to the guidance in the Operator's Manual. And if not, it can be very expensive to maintain.

My take is, it behooves BluTEC drivers to become knowledgeable about the system and what is necessary for its care and feeding. Much info in the manual and on Google.

The next time a diesel box truck is beside you look at the exhaust pipe and observe the paraphernalia adjacent the muffler. What you see is an upsized version of what your BluTEC has. I know, it's kind of scary.

vladimir.cdi

in case that starts count caused by low adblue level - you need to add minimum 10 liters of AdBlue (the best is to fill the full tank)

but in case problem was not the AdBlue level - starts count will stays on and you need to go to dealers to reset it OR to use OBD2 AdBlue reset plug (you can find it from ebay)





https://www.ebay.com/itm/252485713121