Question about 1999 Mercedes-Benz C-Class
Hi this is showing fuel trim bank 1 malfunction, this could be caused by the following things, intake leak, AIR system, fuel pressure/pump, injector/s EVAP canister purge valve, or HO2S ( air fuel mix incorrect) if it starts and runs fine, i do not think it will be fuel pump, or the injectors as this would make it run rough or even not start at all, if it was an intake leak, you would be suffering from high rev's when you start the car and would take a long time for the rev's to come down, so really, that just leaves the HO2S (sensor/s) these are located one on the exhaust manifold ( from engine follow exhaust manifold you will come to a things sticking out with some wires on) this is HO2S sensor bank 1, or if you look under the car on the exhaust, just past the catalytic converter you will see the same thing, this is HO2S sensor bank 2, it may be either of these, but i possibly would go for the first one, EVAP..it could be, if you have an air leak on it, the EVAP can be found under the hood/bonnet, at the front on the right hand side as you look into the engine/motor bay just in front of the screen was bottle...hope this helps
Posted on Oct 02, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 18, 2014 | 2004 Mercedes-Benz C230 Kompressor
Oct 23, 2013 | Mercedes-Benz C230 Cars & Trucks
Sep 17, 2013 | 2004 Mercedes-Benz C230 Kompressor
Sep 03, 2013 | Mercedes-Benz C230 Cars & Trucks
Aug 14, 2011 | Mercedes-Benz C230 Cars & Trucks
Oct 04, 2010 | 2004 Mercedes-Benz C-Class
Sep 25, 2010 | 2002 Mercedes-Benz C-Class
Feb 17, 2009 | 2007 Mercedes-Benz C230 Sedan
May 24, 2014 | 1999 Mercedes-Benz C-Class
1,495 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: