Anyone help me with a part number? (Bosch o2 sensor)

ThinkPad

Senior Member
Joined
Apr 16, 2012
Messages
1,077
Reaction score
185
Location
London
Your Mercedes
E W212; C W204
Upstream o2 sensor for CLS 320 CDI. Thinking if I can get a deal on the sensor, may aswel change it for peace of mind.
Mercedes refuse to give me the part number for some reason. I have seen an o2 sensor on EuroCarParts at approx £178, whereas the Mercedes part is £235.

The EuroCarParts is a Bosch item, but shows for the E Class rather than the CLS. Would it be the same part for my car? If not, any recommendations of where I may be able to get one?

EuroCarParts Part No.: 710221685



Help greatly appreciated.

Edit: Also found the above part on another site for £126. So if someone can tell me if it is the right part, would be great! Or tell me how I can find out!
 
Last edited:
OP
T

ThinkPad

Senior Member
Joined
Apr 16, 2012
Messages
1,077
Reaction score
185
Location
London
Your Mercedes
E W212; C W204
  • Thread Starter
  • Thread starter
  • #2
BUMP
 

duncanh

Senior Member
Joined
Mar 2, 2007
Messages
390
Reaction score
1
Location
Wiltshire
Your Mercedes
BMW 520d SE F10, formerly c220cdi estate (for 12.5 years and 345k miles), before that w124 and w210
Why would you want to spend money on something you don't need? I can't see how having a spare O2 sensor would give you peace of mind.

(Unless you have had a problem diagnosed on a STAR, then I will get back in my box).
 
OP
T

ThinkPad

Senior Member
Joined
Apr 16, 2012
Messages
1,077
Reaction score
185
Location
London
Your Mercedes
E W212; C W204
  • Thread Starter
  • Thread starter
  • #5
To Clarify

Sorry the OP was in a response really to a previous thread of mine.

It came up as fault on the STAR, although there is no CEL on the dash.

I since have had it checked and cleared, and it re-appeared on OBD2 test machine. So the fault is definitely current. Although, couldn't say have noticed any ill effects, but having only just bought the car who knows - maybe I should be getting better economy or performance but just don't know it...
 

RUXLEY

Senior Member
Joined
Mar 6, 2011
Messages
476
Reaction score
0
Location
surrey
Your Mercedes
CLS 320 CDI
Sorry the OP was in a response really to a previous thread of mine.

It came up as fault on the STAR, although there is no CEL on the dash.

I since have had it checked and cleared, and it re-appeared on OBD2 test machine. So the fault is definitely current. Although, couldn't say have noticed any ill effects, but having only just bought the car who knows - maybe I should be getting better economy or performance but just don't know it...

exact same fault as you , did you get this fixed ?
 
OP
T

ThinkPad

Senior Member
Joined
Apr 16, 2012
Messages
1,077
Reaction score
185
Location
London
Your Mercedes
E W212; C W204
  • Thread Starter
  • Thread starter
  • #7
exact same fault as you , did you get this fixed ?

Hi
Sorry for the delay in response.

I have now had the o2 sensor changed. Mainly due to just being pedantic about things, and not feeling happy about having a current fault code stored.

However, after the change, NO difference at all in the drive, the performance or the economy. (May be lower economy in fact - but I attribute that to the cold weather rather than anything to do with the sensor).

When the mechanic changed the part, he did frankly tell me majority of these cars come up with this fault, and he actually advised me not to bother. We also have another CLS CDI in the family, which also comes up with o2 sensor fault of some sort.

CONCLUSION:

Leave it as it is. If the CEL comes on, then check to ensure nothing more serious. But if just o2 sensor faults, I really would not bother.

Hope that helps.
 

RUXLEY

Senior Member
Joined
Mar 6, 2011
Messages
476
Reaction score
0
Location
surrey
Your Mercedes
CLS 320 CDI
Hi
Sorry for the delay in response.

I have now had the o2 sensor changed. Mainly due to just being pedantic about things, and not feeling happy about having a current fault code stored.

However, after the change, NO difference at all in the drive, the performance or the economy. (May be lower economy in fact - but I attribute that to the cold weather rather than anything to do with the sensor).

When the mechanic changed the part, he did frankly tell me majority of these cars come up with this fault, and he actually advised me not to bother. We also have another CLS CDI in the family, which also comes up with o2 sensor fault of some sort.

CONCLUSION:

Leave it as it is. If the CEL comes on, then check to ensure nothing more serious. But if just o2 sensor faults, I really would not bother.

Hope that helps.

did the code go though after replacement ?
 
OP
T

ThinkPad

Senior Member
Joined
Apr 16, 2012
Messages
1,077
Reaction score
185
Location
London
Your Mercedes
E W212; C W204
  • Thread Starter
  • Thread starter
  • #9
Yes it did. In the past if I cleared the code it would come back after a drive. Last time I checked was a couple of weeks after changin the part and it hasn't come back.
 

RUXLEY

Senior Member
Joined
Mar 6, 2011
Messages
476
Reaction score
0
Location
surrey
Your Mercedes
CLS 320 CDI
Yes it did. In the past if I cleared the code it would come back after a drive. Last time I checked was a couple of weeks after changin the part and it hasn't come back.

cheers might try and get it changed under warranty then.
 

EmilysDad

Senior Member
Joined
May 8, 2012
Messages
12,120
Reaction score
5,663
Location
Bury Lancs
Your Mercedes
ML350
.....
Mercedes refuse to give me the part number for some reason. ....

It's so you don't get the part number from them & then go online or to ECP ;) & buy it from them instead. Having said that, I have been given a part number from a MB dealer (the Smart side of MB) so I could check up on availability at A N Other MB dealership (Some MB won't discuss Smart parts even though some bits are the same ;) )
 

RUXLEY

Senior Member
Joined
Mar 6, 2011
Messages
476
Reaction score
0
Location
surrey
Your Mercedes
CLS 320 CDI
It's so you don't get the part number from them & then go online or to ECP ;) & buy it from them instead. Having said that, I have been given a part number from a MB dealer (the Smart side of MB) so I could check up on availability at A N Other MB dealership (Some MB won't discuss Smart parts even though some bits are the same ;) )

Indeed £235 from Mercedes or £53 from motor factors genuine merc part :lol:
 

EmilysDad

Senior Member
Joined
May 8, 2012
Messages
12,120
Reaction score
5,663
Location
Bury Lancs
Your Mercedes
ML350
Indeed £235 from Mercedes or £53 from motor factors genuine merc part :lol:

You do need to be careful though sometimes. I've not had my Merc for long enough to be able to say for MB, but for Vauxhall bits it's generally cheaper in the long run to bite the bullet & buy OE rather than use pattern parts that fail early eg crank shaft sensors. And just because a part is made by the same firm that makes OE, it doesn't mean they're the same eg Heinz make HP beans, but they're different from Beanz ;);)
 

c15htn

Senior Member
Joined
Jan 19, 2013
Messages
668
Reaction score
46
Location
Milton Keynes
Your Mercedes
'00 A208 CLK320 Convertible.
Emilys Dad, i don't think anyone on here would buy just any old motor factor part.....
They seem quite a discerning bunch and seem to aim for Bosch etc - which are likely to be good quality parts in their own right.

I must admit, for this particular car I've elected to do the same :D
 
Last edited:

EmilysDad

Senior Member
Joined
May 8, 2012
Messages
12,120
Reaction score
5,663
Location
Bury Lancs
Your Mercedes
ML350
Emilys Dad, i don't think anyone on here would buy just any old motor factor part.....
They seem quite a discerning bunch and seem to aim for Bosch etc - which are likely to be good quality pays in their own right.

I must admit, for this particular car I've elected to do the same :D

I agree on both counts. ;) ;)
 

RUXLEY

Senior Member
Joined
Mar 6, 2011
Messages
476
Reaction score
0
Location
surrey
Your Mercedes
CLS 320 CDI
Last edited:

d:class automotive are specialists in automotive interiors and upholstery. From Mercedes and modern cars to custom and classics. Tel: 01483 722923 Email:info@dclass.co.ukWeb:www.dclass.co.uk
Top Bottom