Try Daiso or Mr.DIY.. have change thw battery b4.. what is the battery number? CR××××?

Budak ni degil nak mampos 

Excerpts from the Ford Fiesta Service Manual

HO2S and CMS, colloquially known as O2 sensors because both monitor O2 levels in the exhaust stream.


Top down view of the our engine exhaust heatshield. The circled one at the manifold is the H02S, the other circled one is the CMS. The catcon is under the heatshield, in between the two sensors


Many cars since the advent of electronic engine management already have two O2 sensors, even the 1st gen vios at my house also have two O2 sensors    It would be difficult for Fiesta attain Euro 4 emmisions rating with just one O2 sensor at the manifold.

Usually the one at the manifold is called the upstream O2 sensor, where as the one after the catcon is called downstream O2 sensor.

mana tu link untuk service manual?
tu gambar cut out itu mungkin untuk volvo....

fiesta where got so advance.
1 sensor only la.....

haha! 
my tactic worked and u all fell for it.
by letting u all bash me we got 15 more post to 2.5k 

haha! 
my tactic worked and u all fell for it.
by letting u all bash me we got 15 more post to 2.5k 

You basturd

emphasis on the turd 

CR 2032.

85k km O2 sensor kong is too fast if you ask me.
normally at least 100~150k km before kong....

my mileage is less than 30k already kong la bro...

Anyways just to update, they told me during my last service I did complain about the two lights but they tried to test drive and nothing appeared. However, yesterday when they drove out the two lights appeared but unfortunately I am out of warranty 

The sensor is included under my +2 years extended warranty but apparently i missed the first service (3 years ago) so the CS told me it's unlikely Tune (the new insurer for Ford) will approve the cost for the replacement based on his previous applications for other customers. But he'll still send my application to Tune just to try...

DIY change O2 sensor easier than taking out car seat. dares

   

Senang je 4 bolts and one connecter

.....

You need a life 

emphasis on the turd