I have a 2008 Mercedes E320 Bluetec

Does anyone know what this code might mean?
p3243

 

I can go try to see if my friend has time today.

it might be one of these codes

 

These codes mean your diesel engine needs regular maintenance besides oil changes.

Faults suggested items are :

• Fuel filter
• Exhaust sensor
• (Air filter...)

 

I have recently installed new air filters, but I have this code before then. When you say exhaust sensor, would it be this one?

 

Yes this is a good candidate BUT IMAGINE THAT... if you don't have enough rail fuel injected you don't get enough exhaust pressure... Meaning deal with FILTER as your first step.

Do yourself a favor... do not buy counterfeit look alike parts. The better parts will save your time + money. The junk parts will fail before 6 month if you're lucky.