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Have 2012 3500 Sprinter in limp mode due to exhaust crack in…

Have 2012 3500 Sprinter in...
Have 2012 3500 Sprinter in limp mode due to exhaust crack in flex coupling and catalytic converter code. How far can I drive in limp mode?
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8/10/2016
Ron
Ron, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 38,036
Experience: ASE Certs.
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Hello, my name is ***** ***** I am a professional here at Justanswer. Thank you for your question and I will assist you with your concern.

If the system is in limp mode you do not want to drive it any further then you absolutely have to. With the coupling being cracked you could cause extensive damage to the catalytic converter resulting in further expense. If at all possible you should consider having it towed.

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Customer reply replied 1 year ago
Doubt local Sprinter dealer has welding capability and as I stated I have zero faith in their ability in general. Does it make sense to have it taken to a muffler shop first?

Yes you can likely get the repair done quicker at a muffler shop since is it an exhaust leak.

Ron
Ron, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 38,036
Experience: ASE Certs.
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Customer reply replied 1 year ago
Is it true you can arrange a Mercedes Dealer tow for free if they are servicing the vehicle?

In most cases its only covered if the repair is a warranty issue. I would call them to be sure it is or is not.

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Customer reply replied 1 year ago
The codes in question are P0420 or D for last character an P2463. any advise?

The code P0420 is usually set due to a failing catalytic converter but if the exhaust is leaking that could also cause this code to set. The code P2463 can be set due to a clogged diesel particulate filter. Usually running the regeneration mode with a factory scan tool will clear this code as well.

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