2002 W203 CDI auto box not selecting

[DSM10000]

Why not swap to a Morris Minor. Manual gearbox and no electronic items ! Should suit perfectly

What about the side repeaters???

 

[Smart320]

What about the side repeaters???

Oh dear, what about a model T Ford ?

 

[classiccarzone]

That is just two you have mentioned but I will agree to disagree.
I suddenly realised that this had this problem just over two years ago. This is an Estate and generally used for bringing the dog to the beach and for abandoning at airports so often does not get driven for weeks at a time.
I had forgotten all about it until I found my thread on another forum. That time it cured when I cleaned up the contacts in the SAM

Anyway I am getting a Launch creader V111 and I will see what that brings up.

I would have accepted that it was going into limp mode only for the fact that it can rev to the limit, but on reading my thread posts I see that one poster said that limp mode does not limit revs, it just locks it in a gear. Any opinions on that?

 

[DSM10000]

That is just two you have mentioned but I will agree to disagree.
I suddenly realised that this had this problem just over two years ago. This is an Estate and generally used for bringing the dog to the beach and for abandoning at airports so often does not get driven for weeks at a time.
I had forgotten all about it until I found my thread on another forum. That time it cured when I cleaned up the contacts in the SAM

Anyway I am getting a Launch creader V111 and I will see what that brings up.

I would have accepted that it was going into limp mode only for the fact that it can rev to the limit, but on reading my thread posts I see that one poster said that limp mode does not limit revs, it just locks it in a gear. Any opinions on that?

Two real life experiences I can vouch for in terms of mileage and have friends with MB's running similar with no issues. Forums etc tend to attract the problems so using them to try to get a feel for the frequency of problems can give you skewed ideas.

Limp mode can be caused by an engine fault, the TCU will need to read engine parameters to gain information on Torque, engine load, temperature etc to allow the correct gear selection. An engine fault can trigger limp home in the gearbox and lock it in 2nd.

You sound like a knowledgeable and experienced chap if you are checking out SAM's etc so I think you will find it.

Manual gearboxes are OK in the right place such as small hatchbacks and sports cars but MB do seem to suit an automatic. As my father once said "if a Gentleman has 2 litres and or 6 cylinders in front of him he should not stir a stick"

 

[classiccarzone]

Well computer Science is my forte DSM100; but whereas it is of some use it is not of great use on these cars. If it could be sorted by programming an eprom well then that would be good, but that is not the case.
From a time saving point of view it is better to get feedback from those with hands on experience with a similar solved problem rather than going through a time consuming investigation myself, repeating something that someone else may have already done..
I do not believe that the system has gone into limp mode, but if nobody on this forum has experience of a similar situation I will try the excellent .org forum and/or sort it out myself, hopefully as I did with the SAM.

I have three Merc's on my drive. Two manual, one automatic. The Manuals are fine the Automatic is problematic.

Morris Minor, how crude but I do have three Daimler V8 250's; two manual, one automatic. Guess what: the automatic is problematic.

To get back on track I am looking for someone with hands on experience of my problem to post in order to save me time.

 

[DSM10000]

[QUOTE="

To get back on track I am looking for someone with hands on experience of my problem to post in order to save me time.[/QUOTE]


To save you time and money get it diagnosed with Star, that will give the diagnostic result you want and then you may decide if you have the skills etc to fix the problem.

 

[classiccarzone]

DSM10 As stated in a previous post it is not feasible to move the car at the moment, hence the request for a reply from someone who has hands on experience of the problem. I am confident of my ability to fix it

 

[DSM10000]

DSM10 As stated in a previous post it is not feasible to move the car at the moment, hence the request for a reply from someone who has hands on experience of the problem. I am confident of my ability to fix it

Star is based on a laptop so someone with it can come to you. Someone with "hands on experience" has almost certainly had a proper diagnostic run but you clearly know better.

 

[Joesoap17]

Sometimes it is not possible to do a remote "diagnostic" as stated earlier all you will probably do is replace parts until you find a fix.

I don't think you will get anyone on here who will say it is this part or that one until they have some reliable data to go on!!

 

[MangoMan]

I have been doing a bit of trawling on the net and came across this Thread. Anybody any experience on what it contains?

can replacing 13 pin connector on cause 722.6 gearbox to go into limp mode - Mercedes-Benz Forum

Looking at the Thread you quote changing certain electrical items without disconnecting the Battery can give a Fault automatically, (no pun intended) to which you have to get cleared... Just like the Seats, it will throw up a fault on the SRS apparently if the Battery is not disconnected prior....

 

[classiccarzone]

Sometimes it is not possible to do a remote "diagnostic" as stated earlier all you will probably do is replace parts until you find a fix.

I don't think you will get anyone on here who will say it is this part or that one until they have some reliable data to go on!!

Thank you MangoMan for the input.
I do not want anybody to commit themselves. I just thought if someone here had a similar experience it would be helpful to know what their solution to the problem was while I await an obd scanner.

I have an xlaunch creader V111 that I never even used (loaned it to a friend) but I am led to believe that this is not suitable for pre 2004 diesels (the supplier said it is not compatible)

A friend has an icarsoft MB11 that he can get to me at the weekend but he said that when he asked his supplier about it doing a pre 2004 w203 c220 cdi he was told that it will not do.

I am surprised at that as the car has a 16 pin obd type connector and a 2002 CDI should have this to iso 9141 and 14230-4 protocols.
It has connectors in slots 1,3,4,5,7,8,11,12,15,16. that satisfies the iso 9141 protocol and 2/KWP2000 because it has connectors in slots 4,5,7,15,16. It is not can as it does not have a contact in slot 6 or 14.

Has anybody here used an icarsoft mb11, or indeed an MB 1 successfully in a 2002 Cclass 2.1 CDI?

 

[classiccarzone]

The battery was disconnected when the Pilot bushing was changed. The gearbox worked perfectly afterwards. While I was doing the fuel pressure sensor and the serpentine belt the battery was on the charger, out of the car, just to be sure it was fully charged.

 

[classiccarzone]

On 1996 (USA) and later vehicles, you can tell which protocol is used by examining the OBD II connector:

• J1850 VPW --The connector should have metallic contacts in pins 2, 4, 5, and 16,but not 10.
• ISO 9141-2/KWP2000 --The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
• J1850 PWM --The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.
• CAN --The connector should have metallic contacts in pins 4, 5, 6, 14 and 16.

If your vehicle has this style connector, but doesn't have these pins populated, you probably have a pre-OBDII vehicle. To add some confusion, even having the connector with the contacts shown above is not a guarantee of OBD II compliance.

 

[classiccarzone]

Star is based on a laptop so someone with it can come to you. Someone with "hands on experience" has almost certainly had a proper diagnostic run but you clearly know better.

DSM1 Star is not as simple as that, look it up. You can google it.

 

[Joesoap17]

Plug the MBII in and see what it generates, you have nothing to loose!!
And maybe you may be closer to solving your problem?

 

[AltonAnt]

Have you changed the electroplate?
There are really only a few things it could be and all fairly straightforward once you work out what it is and using a dedicated code reader will help you out here massively.

722.6 conductor plate - YouTube

 

[DSM10000]

DSM1 Star is not as simple as that, look it up. You can google it.

I do not need to Google it I have experience of Star and what it can do thank you. As to what you mean by "Star is not as simple as that I do not know. It is the dedicated diagnostic software for MB and is superior to any generic software.

You came here for advice and you have been given good advice by myself and several others more experienced than I, you just choose not to listen to it if it does not suit your mindset. I also find some of your responses to be borderline rude and arrogant suggesting people are wasting your time.

Remember this Forum is a free resource and people give their time freely to help others such as yourself, you may learn something new.

Do not bother replying, I will not waste my time reading or responding.

 

[classiccarzone]

please go away DSM. All you want to do is argue. I have no interest in that.
just saw your last sentence. GREAT

 

[classiccarzone]

Have you changed the electroplate?
There are really only a few things it could be and all fairly straightforward once you work out what it is and using a dedicated code reader will help you out here massively.

722.6 conductor plate - YouTube

Thank you for the helpful response, AltonAnt.
I did not replace the electroplate. I do not want to do that just yet; at least not until I get the icarsoft from my friend. He has posted it today so I should have it for the weekend. It is the newer version of the MB11 being the V2.0.
I have doubts that it is the electroplate as the car did not have any issues after the change. It is something that happened while it was sitting in the garage getting a few other things done. It is not displaying the usual symptoms either.
I have a feeling that it may be that a wire from the pilot bushing may have cracked as I noticed that the head shield was not in place and the wiring was a tad hard, probably as a result.
I will do a resistance check on it before the weekend.

 

[classiccarzone]

Plug the MBII in and see what it generates, you have nothing to loose!!
And maybe you may be closer to solving your problem?

Should have it by the weekend. It is the newer version so I am hopeful that it will work.
I just hoped that someone may have had a very similar experience in the meantime.