13 posts in this topic

This blog to be referred to once you have properly diagnosed a faulty crankshaft sensor (2005 - 2006 smart cdi) model only. 

 

Follow the diagrams. 

Note it was not an easy task but "NOTHING" else was needed to be removed in order to replace the crankshaft sensor. 

A good flash light is a must.

You will also need to raise the rear of the vehicle to gain access from the bottom. 

(If you are a shop and have a lift it will simplify things)

IMG_5108.JPG

IMG_5089.JPG

Share this post


Link to post
Share on other sites

Posted (edited) · Report post

The most difficult part was removing the connector from the sensor. 

I was able to remove it with the sensor then use the long nose pliers to squeeze and separate the sensor from the connector. There is not very much room at all and the harness is short, therefor the use of 2 long nose pliers was needed. 

Edited by Crusin

Share this post


Link to post
Share on other sites

I hope this was helpful. 

 

Symptom were :

hard starting / stalling at low rpms / intermittent bucking while under light accel / no start for 1 to 5 minutes. 

( All this without setting any codes )

 

Diagnosis :

Finally set a hard code and engine light stayed on. 

P0335

 

Oem German made part is approx $52 Canadian + taxes almost anywhere online. 

 

Mercedes is asking $190 for the same part. 

 

 

IMG_5092.JPG

2 people like this

Share this post


Link to post
Share on other sites

Exploded cross-cut view. 

 

This may help you put things into perspective.  

 

cdi 450 diesel 

IMG_5109.JPG

Share this post


Link to post
Share on other sites

I had similar issues, replaced the sensor (New from MB $225), changed absolutely nothing. How did it go for you?

Share this post


Link to post
Share on other sites

There is an other method here:  

Both are fiddly procedures and won't work if sensor is stuck in its bore in which case transmission must come out.

Share this post


Link to post
Share on other sites

WOW!!! Crusin has my respect! His pictures and explanations are awesome!

And Tolsen must be a magician!!!

 

I had one hell of a time trying to remove the electrical connection. Must be my thick uncoordinated fingers.

I eventually removed the I/C fan, the I/C, and lowered the engine to gain access.

 

I'm just glad I got the sensor replaced and am hoping that solves the problem!

Share this post


Link to post
Share on other sites
On ‎2017‎-‎05‎-‎14 at 5:41 AM, tolsen said:

There is an other method here:  

Both are fiddly procedures and won't work if sensor is stuck in its bore in which case transmission must come out.

 

Tolsen is right again ''Got it out in seven minutes. I bet it will take 50 times longer on a Canadian Smart due to EGR cooler making access very difficult from above.''

So 7x50 = 350 mins. I got it done in about 300 mins - good guesstimate!

Share this post


Link to post
Share on other sites

I am impressed.  Hope you applied grease both to threads and bore. 

Share this post


Link to post
Share on other sites

My hat's off Crusin, excellent thread and pics.....almost makes you want to do it as a preventative measure......almost....lol

Thanks

 

Share this post


Link to post
Share on other sites
8 hours ago, tolsen said:

  Hope you applied grease both to threads and bore. 

 

Yup, I grease everything before reinstalling - I hate it when bolts and parts are seized!!!!

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now

    Chatbox
    You don't have permission to chat.
    Load More