Engine LED light up (need advice)

[DDDLow]

Dear All

My reliable W203 C180 saloon, a year more to scrap, has the Engine LED lighted up.

My workshop diagnoised and indicated fuel mixture too rich.

Mechanic told me it's ok as long the car/engine still function normally. If want to find the problem needs to check many components and hence will take a long time. He even told me that type of petrol used play a part too.

Anyone can advise on this matter?

 

[MarkCWQ]

Had the same issue, fuel mixture too rich. Mine is a W204 and was due to a crack in the pipe near the exhaust header causing the sensor to have a wrong reading. The car will still drive normally if fuel mixture is rich. I had a fuel mixture too lean issue before which caused the car to be severely underpowered. 

[DDDLow]

Hi MarkCWG and snsd555

Thank you for your advice.

Other new problems will use the came Engine LED to indicate ya? So if the LED remains lighted then I won't now right, is this concern valid?

I saw many W203 renew COE, good car to keep but COE value remains a key factor on the final decision.

Any renewed COE W203 drivers there? Any comment?

 

Have a nice weekend to all.

[DDDLow]

16 hours ago, MarkCWQ said:

Had the same issue, fuel mixture too rich. Mine is a W204 and was due to a crack in the pipe near the exhaust header causing the sensor to have a wrong reading. The car will still drive normally if fuel mixture is rich. I had a fuel mixture too lean issue before which caused the car to be severely underpowered.

Hi Mark

How long your workshop took to find the fault?

[akula]

i dun know if sometime it is false alarm. i experienced twice already (second time only last week) that the light came on but disappeared after 2-3 days before i could go workshop to check 

[bossbthk]

those on kompressor engine... this is a common fault. there is a pipe that feed air to the kompressor and to the engine, it could be leaking air resulting in a richer petroleum mixture.   

[MarkCWQ]

1 hour ago, DDDLow said:

Hi Mark

How long your workshop took to find the fault?

For mine, they hoisted the car up only can see the crack already. Quite obvious. 5 mins?

[DDDLow]

Thanks all....

 

[Odessus]

6 hours ago, DDDLow said:

Other new problems will use the came Engine LED to indicate ya? So if the LED remains lighted then I won't now right, is this concern valid?

It's a valid concern for me. CEL is a definite no no for me. Safety first...

[DDDLow]

Good news. The Light went off last Sat (by itself).......to-date travelled about 400km....pls maintain this way.....finger cross.

 

[Odessus]

Good luck!

[kentan1982]

On ‎26‎/‎8‎/‎2016 at 11:44 AM, MarkCWQ said:

For mine, they hoisted the car up only can see the crack already. Quite obvious. 5 mins?

hi bro,

than how u rectify it.

mine 204 seems to have this problem now.