Mercedes-Benz W111 U3472 Engine Trouble Code

Mercedes-Benz W111 U3472 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

Mercedes-Benz W111 U3472 Code Meaning :

U 3 4 7 2
OBD-II Diagnostic Network (U) Trouble Code For Engine Ignition System Or Misfire O2 Sensor Heater Circuit Malfunction Cylinder 10 Contribution/balance Fault Glow Plug/Heater Circuit 'A' Malfunction
Mercedes-Benz W111 Engine

When you check Mercedes-Benz W111 car engine light came on code U3472 the reason should be . However manufacturer may have a different definition for the U3472 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U3472 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for U3472 code is occuring now you should check U3472 repair processes.
Now don't ask yourself; What should you do with U3472 code ?
The solution is here :

Mercedes-Benz W111 U3472 Possible Solution :

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

U3472 OBD-II Diagnostic Network (U) Trouble Code Description

U3472 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.

Reason For U3472 Code

The reason of U3472 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

Parts or components should not be replaced with reference to only a U3472 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.