Not sure if I have heard of this on Airforums so thought I would post my experience in hopes that it may help someone else with the same problem.
Grab a drink and some popcorn, it's long...
A couple of months back drove our 2015 Interstate with approx 16,000 miles on a day trip of 150 miles. Stopped at a local restaurant for dinner and then over to Chevron to fuel up.
After refueling with 21 gallons of Diesel and restarting the van immediately noticed a check engine light and upon driving realized I was in limp mode.
Restarted a couple of times and drove a few miles but there was no change so stopped into a local RV repair shop right at 5:00 and asked if they would throw their scanner on real quick to see why the check engine code. He read it as P0087 which is low fuel rail pressure.
I needed a tow to Mercedes San Diego Sprinter Service and after a failed attempt with Coachnet attempting to arrange this and the wrong truck being sent they gladly let me pick my own company and they paid. No problem.
If you get towed you need what's called a Landoll Trailer. It is a low trailer with 3 axles that move to lower the bed down. They make these in different sizes so just call around until you find a company that has one. They will know what you are talking about. Still needed a couple pieces of
2x6s to make sure the front didn't scrape because of the approach angle.
OK, drop off our van at night and put up all shades to make it appear as if someone may be sleeping inside. Luckily nobody messed with it.
The next morning I drive over to the service department and drive my van inside and explain what happened and also tell them about the P0087 Code.
A couple hours later I get a call from the service advisor that the technician said I put GAS
in the tank instead of diesel. I knew that I had not so I thought if I proved it everything would be hunky dory. Go back to Chevron (I never keep fuel receipts) give them my AMEX card and they print my receipt which showed 21 gallons of DIESEL
. I also buy a brand new gas can and head over to Mercedes Benz San Diego thinking all was well.
I show the technician and service advisor my receipt and the technician says "it still smells like gas". I said it is not gas and I am the only person to have ever fueled this vehicle after delivery and it has never had any gas put in it.
They then tell me that they need to drop my fuel tank, drain the fuel and replace fuel filter because that's what they do when the airport shuttle drivers accidently put gas in the tank and it happens all the time. I reiterate that I am not an airport shuttle driver and that it was diesel not gas. They also told me that if that didn't work they would have to send a fuel sample to GERMANY
for testing. Seriously.
Before I leave I get my fuel sample in my brand new gas can.
In the meantime could not even get the service manager to call me back until MBZ San Diego general managers assisstant was contacted. When the incompetent did call me back he again claimed it couldn't be diesel because the technician had lit it on fire, in the service bay, on the ground and diesel doesn't burn. Oh really, yes it does. I told him to look it up on the internet, it lights up like the 4th of July.
Anyway dropped the tank, replace fuel filter, high pressure and low pressure fuel pump. Didn't work.
In the meantime I sent my diagnostic print out to another Mercedes dealer where I know a technician in another state. He said the codes Do NOT
reflect contaminated fuel in any way. Looks like a fuel rail sensor which is what I told them on day one.
So now we wait for the fuel sample which BTW was sent to either Los Angeles or Oregon. I actually asked the Service Manager "well, what did it say on the shipping label?" They really didn't have a clue.
In the meantime, I find 3 independent laboratories that would test my sample if for some reason their sample comes back contaminated. I email the SA with links to all 3 websites and let him know my intentions.
I convince them to order parts if in fact the fuel comes back clean with no contamination which BTW they told me would void my engines warranty. I asked what parts would they throw at it if the fuel came back clean. They said fuel rails and fuel rail sensors. I asked what if it came back contaminated? They said same parts. So they ordered them at my urging otherwise would have been another week or so waiting for parts.
Fuel sample comes back.....drum roll please.....CLEANNOT CONTAMINATED DIESEL
I truly believe, if I had not gotten my fuel sample first and watched firsthand as the technicians obtained it that some brake cleaner or something else would have been added to make sure it came back contaminated.
They put on new fuel rails with sensors in a couple hours and done. Runs great and will actually go a little faster than before.
I go in to pick it up after about 3 weeks, which BTW warranty covered everything and you know what they tell me? Have a Nice Day
Not we are sorry our trained technician misdiagnosed the problem, or how about a free oil change next time for your trouble? Nope, "Have a Nice Day". Remember this was after being told multiple times by the technician an service advisor that contaminated fuel would void my warranty.
I really believe that they were hoping that I was in a hurry and would just agree to have it fixed no matter what without the fuel sample being sent in at my own expense. Not