yellow engine diagnostics warning lamp lighted

[Guest lightning]

yesterday afternoon the yellow engine diagnostics warning lamp came on and refused to go off even after I stop/start 5hrs later...spoke to my SE and asked me to send in to C&C for checkup if the light still persist the next morning...

this morning the light is off...even after a few stop/start...??? she told me could be due to some sensors problem...anyone experienced the same?

the manual gave some possible causes but very vague leh??? :noidea::confused:

[Guest kepiting1sg]

lightning wrote:

yesterday afternoon the yellow engine diagnostics warning lamp came on and refused to go off even after I stop/start 5hrs later...spoke to my SE and asked me to send in to C&C for checkup if the light still persist the next morning...

this morning the light is off...even after a few stop/start...??? she told me could be due to some sensors problem...anyone experienced the same?

the manual gave some possible causes but very vague leh??? :noidea::confused:

Could be due to O2 or MAP(Manifold Absolute Pressure) sensor.

If it comes back again - go to C&C.

They can also run the Engine Diagnostic and the check, the error should show up.

Last week more "frightening" for me.

After car wash in Petrol Kiosk, went on to the main road and in less than

50m, no warning lamp, engine suddenly lost power, refuse to accelerate and car refuse to move. Switched off the engine and restart, everything back to normal again. Scary! Hope it doesn't cum back again! Closed eyes pretend not to be there.....hahahaha!

Suspect error in the TCU mechantronics aka Transmission Control Unit.

So far so good!

[Guest lightning]

Choon choon after I pumped my 1st tank of caltex 95...not sure anything to do with that...all along I m using caltex premium 98 since day 1....hahaha :shocked:

[Guest blackmercs]

Bring yr car to NS at go at top speed for one round. I m sure simi ECU problems will go away!! Btw were u calling yr SE yest afternoon? Coz i m testing the SLS with yr SE.

[Guest lightning]

blackmercs wrote:

Bring yr car to NS at go at top speed for one round. I m sure simi ECU problems will go away!! Btw were u calling yr SE yest afternoon? Coz i m testing the SLS with yr SE.

ya...you are right...around 2.30pm right? wow...test drive SLS, how was the ride? :music::whistle:

[Guest blackmercs]

lightning wrote:

ya...you are right...around 2.30pm right? wow...test drive SLS, how was the ride? :music::whistle:

The car is boring so end up brought the poster instead!!

[Guest lightning]

blackmercs wrote:

The car is boring so end up brought the poster instead!!

poster was FOC with TODAY newspaper....ya hor not SPH but Mediacorpse...LOL :becky:

[Guest blackmercs]

lightning wrote:

poster was FOC with TODAY newspaper....ya hor not SPH but Mediacorpse...LOL :becky:

No ideas, I thought they giving baby products . Here is a teaser shot!!

[keltanky]

lightning wrote:

Choon choon after I pumped my 1st tank of caltex 95...not sure anything to do with that...all along I m using calyx premium 98 since day 1....hahaha :shocked:

Pump esso la... :whistle:

[Guest lightning]

keltanky wrote:

Pump esso la... :whistle:

If I stay around jurong kechil area I surely pump esso to suppork suppork you bro... :bounce:

[Guest lightning]

sian...the yellow light came on again last Sun and went off the next morning...again it came on yesterday morning so quickly rushed down to C&C...the SA hook-on their computer and said it was due the fuel sensor module problem and need to be replaced...and have to send in for a day to carry out the job...but the light went off again in the evening...not sure if they can still carry out the job...anyone has the same problem before?

[Guest DIY_merc]

lightning wrote:

sian...the yellow light came on again last Sun and went off the next morning...again it came on yesterday morning so quickly rushed down to C&C...the SA hook-on their computer and said it was due the fuel sensor module problem and need to be replaced...and have to send in for a day to carry out the job...but the light went off again in the evening...not sure if they can still carry out the job...anyone has the same problem before?

hope everything is ok for you soon, bro.

[Guest chiaster]

lightning wrote:

sian...the yellow light came on again last Sun and went off the next morning...again it came on yesterday morning so quickly rushed down to C&C...the SA hook-on their computer and said it was due the fuel sensor module problem and need to be replaced...and have to send in for a day to carry out the job...but the light went off again in the evening...not sure if they can still carry out the job...anyone has the same problem before?

How is it that you have a "coffee" logo on the bottom left of the display circle?Is it telling you to go for a coffee break???

[Guest lightning]

chiaster wrote:

How is it that you have a "coffee" logo on the bottom left of the display circle?Is it telling you to go for a coffee break???

ya coffee break...haha...it is the Attention Assist feature and it came active from factory on all W212. ...if you start dozing after a long drive and start losing control..maybe when you drive at the Autobahn for a long period.. it beeps and the coffee cup becomes bigger and asks if you want a rest...

Hopefully the next version of the car will make coffee for you...LOL :becky:

[Guest chiaster]

lightning wrote:

ya coffee break...haha...it is the Attention Assist feature and it came active from factory on all W212. ...if you start dozing after a long drive and start losing control..maybe when you drive at the Autobahn for a long period.. it beeps and the coffee cup becomes bigger and asks if you want a rest...

Hopefully the next version of the car will make coffee for you...LOL :becky:

Wow. E-Class. Fantastic. I guess I'll have a few more years before I progress to that stage. And yes, we may see coffee-makers in cars probably in this lifetime with all the fast and furious technological advancements these days.

[Guest IEM3333]

lightning wrote:

ya coffee break...haha...it is the Attention Assist feature and it came active from factory on all W212. ...if you start dozing after a long drive and start losing control..maybe when you drive at the Autobahn for a long period.. it beeps and the coffee cup becomes bigger and asks if you want a rest...

Hopefully the next version of the car will make coffee for you...LOL :becky:

If it does, Pls make it a Nespresso and Benz tied up...

wahahah...

[Guest NewC180]

Lightning, since me now eng, tell you a little story that happened 3 years ago.

I rented a Merc Vito/Viano MPV in Europe. 11 seater with lots of space for my family. Enjoyed driving the 'van' for 2 weeks. Then one day I was driving towards a ski resort, halfway through the same yellow engine diagnostics light came on. Car power dropped drastically, can't go faster than 50km/h. LL stop at the rest area and called Hertz for help. Hertz said recovery vehicle can only reach me in about 2 hours. Me then LL continue to drive to my destination at 50km/h!!! Finally the recovery vehicle came and met me at the ski resort, then 1 chicken and 1 duck cannot communicate. The technician plug in his diagnostic device, and keep telling me 2 words, "Problem" and "Factory". After some guessing, I think he is telling me that there is a serious "Problem", and the vehicle need to send back to the "Factory". Then I told him that I'm returning the vehicle the next day. On hearing that, he did some magic on this diagnostic device to clear off the error, and told me that the car should last me till the next day. Magically, the power of the car came back, and the yellow light is gone. I drove carefully till the next day when I returned the car.

I think what the tech did was to override the error, but that doesn't means the problem has been resolved. I think some parts/sensors must have up lorry. Better to send your car back to AD for a thorough check!

Good luck!

.

[Guest bbwannabe]

lol, sounds like the vito is in the limp-home mode. just curious, could you go past 2nd gear?

[Guest NewC180]

bbwannabe wrote:

lol, sounds like the vito is in the limp-home mode. just curious, could you go past 2nd gear?

It was an auto, think it was moving between 3rd and 4th gears during that damn journey, about 30-40km! People on the highway must be thinking why am I driving so slow.

.

[Guest lightning]

thanks peter for your vito story...i called up C&C this morning and was told that they need to indent the parts and keep me posted...better get it fixed otherwise i worry one day i may need a tow truck if it refuses to move on the expressway...:Cry:

[Guest lkh]

kepiting1sg wrote:

Last week more "frightening" for me.

After car wash in Petrol Kiosk, went on to the main road and in less than

50m, no warning lamp, engine suddenly lost power, refuse to accelerate and car refuse to move. Switched off the engine and restart, everything back to normal again. Scary! Hope it doesn't cum back again! Closed eyes pretend not to be there.....hahahaha!

Suspect error in the TCU mechantronics aka Transmission Control Unit.

So far so good!

This has also happen to me a month ago! I sent it to C&C and they say software need to be upgraded. half day job...so far so good.

[Guest Kess]

Hi, my 4yrs old W211 started to get this intermittent engine diagnostic light problem. Sometimes the light came on during engine start and sometimes it cam on after 5 mins of driving. It certainly is a pia.

How did you guys resolve it?

[Guest lightning]

Kess wrote:

Hi, my 4yrs old W211 started to get this intermittent engine diagnostic light problem. Sometimes the light came on during engine start and sometimes it cam on after 5 mins of driving. It certainly is a pia.

How did you guys resolve it?

my car is still under warranty by C&C so i went back to them and they did something to the harness...took them a few days to fix it... :whistle:

[Guest jonny7733]

Kess wrote:

Hi, my 4yrs old W211 started to get this intermittent engine diagnostic light problem. Sometimes the light came on during engine start and sometimes it cam on after 5 mins of driving. It certainly is a pia.

How did you guys resolve it?

strangly what i did , is change my keyless remote battery! bo taichi already...

btw if u encounter it again! u need to drive it immdiately to the workshop so that they can record the error code.

[Guest kepiting1sg]

Kess wrote:

Hi, my 4yrs old W211 started to get this intermittent engine diagnostic light problem. Sometimes the light came on during engine start and sometimes it cam on after 5 mins of driving. It certainly is a pia.

How did you guys resolve it?

Go to either of our site sponsor Starblack or MBM.

They can do a engine diagnostic check to see what caused your CEL (Check Engine Light) to turn on.

Could be a faulty sensor!