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Countdown light is on for the Def fluid again, def is full.

Customer Question
Countdown light is on...

Countdown light is on for the Def fluid again, def is full.

Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

Countdown for def shutoff, def Light illuninated check engine illuminated

Mechanic's Assistant: What is the model/year of your Mercedes?

Been to Local Benz dealer 5 times so far

Mechanic's Assistant: What year is your Mercedes?

2013

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

No Isringhausen Mercedes Benz of Springfield IL

Submitted: 7 months ago.Category: Mercedes
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Answered in 4 minutes by:
1/18/2018
Mercedes Mechanic: Wolfgang, Mercedes Technician replied 7 months ago
Wolfgang
Wolfgang, Mercedes Technician
Category: Mercedes
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Experience: master tech benz ase cerified L1 and L2
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Welcome, I'm Wolfgang.

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Is the check engine light on?

i do need a vin # please

thanks

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Customer reply replied 7 months ago
Don’t have the VIN tonight, it’s a 2013 . Check engine light is on again. Van has had def pump/system replaced within the past month over 6K
Mercedes Mechanic: Wolfgang, Mercedes Technician replied 7 months ago
The sooner the better please. Thanks
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Customer reply replied 7 months ago
WD3PF1CC6D5732838
Mercedes Mechanic: Wolfgang, Mercedes Technician replied 7 months ago

thanks for the vin let me see what was done to the vehicle

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Mercedes Mechanic: Wolfgang, Mercedes Technician replied 7 months ago

ok last repair you had an egr valve replaced, injection nozzle and some type for line replaced.

then before injection nozzle, temp sensors, fuel filter.

correct ?

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Mercedes Mechanic: Wolfgang, Mercedes Technician replied 7 months ago

did you get a scan test and what codes are stored now?

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Customer reply replied 7 months ago
Have not had it scanned
Mercedes Mechanic: Wolfgang, Mercedes Technician replied 7 months ago

a scan will be needed to see which codes are stored now and compare to the codes from the last couple of visits to see if it is the same par concern or a different one.

i do see lot of miles on the vehicle so i have to keep all options open on this if it is same or different code concern

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Mercedes Mechanic: Wolfgang, Mercedes Technician replied 7 months ago

at this point we are both stuck until scan test is performed. I do want to help!!

Thanks

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Customer reply replied 7 months ago
Not excited to pay $140 again for a scan at the dealer
Mercedes Mechanic: Wolfgang, Mercedes Technician replied 7 months ago

another option autozone or advanced auto parts they at least do a scan for free!!

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