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Discussion Starter #1
First New Work Truck since 1999. :nerd:

But having Engine light issues, here is my tell.

After picking up the van new from the dealer, The engine light came on at 30 miles, was told to take it to the service department. They never read the trouble code, only cleared it. On my way into work the next day the engine light came on again, went to the service department, they told me to leave the van and they would get to it. I waited 2-3 hours and was told a part needed to be replace, had to be ordered. Came back a week later to have the
Install it, waited 2-3 hours and drove it home, the engine light came on again after 30 minutes of driving. Emailed the service department about it and they asked for me to bring it back again so they can look at it again. Trying to find the time to wait again.
 

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The engine light is the catch all for trouble relating to the OBDII emissions control diagnostic system. It being on means that either something covered by this system is not working right or that one of the sensors that measures it is not working right.

It's a US Govt mandated thing. The number one cause for the light firing is an improperly tightened gas cap causing a loss of pressure in the fuel system- that is unlikely in the Metris as it uses a bayonet style cap.

The standard procedure for certain sensors is to guess that it is an anomaly and reset the computer. That frequently does solve the problem. The second step is that there is likely a malfunction in the appropriate sensor. They probably replaced the sensor.

What you have now is that there is an actual problem causing the sensor to get an out of normal reading. This is a very clear warranty issue that requires work.

I would tell them that 1) this is obviously a current defect, 2) this is the third time you are going to bring it in for the same problem, 3) you can invoke the lemon law, 4) you would rather not, but 5) you will if they don't make sure it's fixed by the next time you see it, and that they give you a loaner until such time.

I would find another dealer if they don't cave. Or invoke the lemon law. Them making you wait a few hours is one thing, but a problem like this requires more time and they should be giving you alternate transportation.
 

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Would be interesting to see what code is coming up and if its the same one. Sometimes its one thing that can be caused by a chain reaction. Fix one, another weak link is revealed.

This is where a good tech can troubleshoot the issue properly instead of just replacing a part and sending you off.
 

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Discussion Starter #4
Thanks for the info. The first part they replaced was a defective charcoal canister for the evaporation system. Living on a Island is hard, this is the only dealer in town. Hate to do the Lemon law, but at least I have a option.
 

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Too bad the Metris is too new in the market, making the dealer that much more important in terms of your support.

Once the warranty is up, its good to have a back up MB specialized independant mechanic near by.
 

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At the very least a certified letter with a lemon law application will get the attention of MB Corporate and they'll be on the dealers back until the van gets fixed. Or call MB and complain, they are usually pretty good at following up.
 

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My Metris was in the shop within four days of driving off the lot with the engine light coming on at 200 miles.
The first time they connected and said it was the gas cap was probably throwing the fault code.....not.. came back on 48 hrs later.
My van was in the shop 9 days while they reloaded the computer after all input sensors checked out OK. They also replaced the rear muffler due to a resonance iI had complained about.
I asked if they could keep it another three weeks and I'd let them know what color and features I'd like on my new one when ordered.....:frown:

Been perfect the last 5 months...all except the Service A code is date driven...so it is based on 1 year from it rolling off the assembly line. Took it in and the dealership didn't know what to tell me... I let them Benz me over for an oil change, just so i could prove that it was in for service based on the cars computer.
In my opinion, that service interval setting should be updated at the time of sale as part of the vehicle being made ready for the purchaser....
 

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It was an evap hose not properly plugged in. We've seen a few of them.(I've not personally seen them) A test through sds would have shown it was not fixed.
 

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Engine light

New Metris with only 4500 miles engine light on. Several hours of lost work waiting at the dealer, major evap leak. Told by independent mechanic that a fleet of MB vans nearly put a guy out of business, high maintenance costs. Very disappointed MB. Although this one is under warrantee, confidence is diminished and had way better experience with Ford dealer in the past. MB service doesn't care about your time and money. Nice vehicle but will cost you time and money.
 

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I ain't gonna tell you a Mercedes is the cheapest vehicle to maintain, nor will I tell you that they have Toyota-level low maintenance reliability. I personally have no problem with the dozen MBs I've owned, mostly old. However keep the following in mind:

Non MB specialized Independent mechanics hate MB vehicles. They are different from American vehicles in more ways than you can think of given that they both run on Otto or Diesel cycles and other similarities. Non Mercedes similar case in point: in Europe, Peugeot 404s, 504s and 505s are known as (even in Germany, where you can call this the highest possible praise) "Der French Mercedes". In developing nations the world over they are still prized as the finest bad condition car available- so much so that the 504, introduced in the 70s, lasted in production into the 2000s in Argentina, Nigeria, and Kenya (2006 was the last year).

And in the States, among most of the population (Peugeotphiles do exist and I am one of them) they are considered garbage. Because American mechanics did not understand how to maintain them, they were perpetually unreliable unless the owner knew how to do it or where to take it.

If you want to enjoy your Metris, service at either a dealer or a specialist. And don't assume a low cost vehicle.
 

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My indie mechanic also said German built MB are easier to work on than The American built ones. This is more in regards to diagnostics and code reading. MB on a whole are very territorial about their information and whom has access.

Keep in mind the Metris is pretty darn new, so it will be more dealer dependant on many levels.
 

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I resolved mine engine light issue by turning engine off, pulling key out and taking off gas tank cap and putting it back on. Turned engine back on and light was gone. Hope it will help to somebody.
 
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