Hi all,

I recently bought a 2007 roadster, with 55k miles. Last oil change was done 2 years ago and the FSS is showing -2800 kms. I will tackle this during the next weekend.

Reading the posts on the common Crossfire problems, I stumbled upon common CPS, camshaft PS and RCM malfunction. I didn't get into these for the moment, but I wonder whether it was worth changing the CPS and camshaft PS as a preventive maintenance and buying only Bosch parts (quite easy to find here in Europe).

It seems the best bet is to change them and keep the old ones in the trunk. Need also to check RCM contacts and relays ?

What's your advice ?

Thanks in advance.

 

Yes, Yes and Yes.

 

Thanks for your concise answer

Could you please confirm the Bosch P/N:

• CPS: 0 261 210 170
• Camshaft PS: 0 232 103 037

Torx bolt is M6x16 and E8 socket to unscrew it.
Around 100 € for both.

Thanks in advance.

 

Those are the numbers, the camshaft position sensor does not fail very often, replacing parts sometimes means you install a part that fails almost immediately. Bosch parts are the best, we say use Bosch parts or you will walk home one day.
Carry spares of these parts and the tools required to install them.
Solder the weak joints as shown in the RCM repair thread just in case they are poor joints and look at the contacts on the relays for signs of arcing, replace the solenoids if the contacts are burnt.

 

180 is a wealth of knowledge. BUT, I have a 2004 N/A coupe, have not changed the
Crankshaft Position Sensor but did get the code for the Camshaft Position Sensor. Changed it out, Easy, and all is good now.
Bill T.

 

Ordered both this evening, should receive them next week.

Is the camshaft PS bolt also an E8 Torx ? Same torque as Crankshaft PS (8 N.m) ?

 

I never said they do not fail, obviously they fail sometimes. I keep a spare of each sensor in the trunk along with the tools to change them.
I do not have a wealth of knowledge, but I do remember where to get the info when I need it and remember most of it. I think.
Crankshaft PS removal. CLICK
Cam Shaft PS removal. CLICK

 

And I suppose they fail without any warning ?

 

They can fail in an instant or they give you a warning, keep a spare handy.
I have not had one fail on the Crossfire but my wife's old car had one die over night.

 

Hi all,

Today I changed the CPS (Camshaft). I noticed the Bosch part is a little different from the original one (old one is only plastic, new one some metal is visible) but it fits perfectly. It was a little bit difficult to remove the Torx bolt, and I notice some old loctite (appeared to me a some old loctite) but not sure, as it is not noticed in the workshop manual. Wroth putting some?

 

Wouldn't do any harm, peace of mind thing

 

Depends on the grade of Loctite you use, this is a small screw and it may be a devil to get out if you use a strong Loctite grade.
I see no reason to use it anyway as long as it is tightened to spec.

 

Agree with onehundred80.

I just come back from a road test, and something weird is happening now, didn't notice that before.

When the car is cold, the engine is shaking a little bit with a low idle. And when it's hot, sometimes, when the stick is on neutral, engine is going up to 2000rpm with no reason

Don't know what's going on. Wrong part?

Here is the brand new box (Bosch P/N seems OK) and the old part.







On the old one, some numbers:

0 232 103 050
07-02-19
A 004 153
96 28

Any advice? Swap back the old one? Does the ECU need some time to adjust its settings?

I'm a little bit puzzled...

 

I put back the old one as the reference was not the same.

I did a little research here:

https://www.bosch-automotive-catalog...uct/0232103037
https://www.bosch-automotive-catalog...uct/0232103050

Both parts are not exactly the same:






The line labelled Type Formula is not the same. Don't know this stands for, but not identical. Mine (050) has a replacement part.

Hope I didn't harm the engine...

 

No clue from anyone? I have ordered the 114 part. I'll see...

 

Way back I agreed that 037 was the correct part. Why confuse everything with over thinking it.
So 037 or its replacement if there is one now.
Maybe the one you took out was not the correct one.

 

Maybe I'm too over cautious

One thing is sure: I put back the 050 one and it runs smoothly. So, it's either coming from the 037 brand new part itself, or this is not the right one for a 2007 car. I have the full history if the car, and that part hasn't been changed, at least on all the invoices I've got.

It's rather a mystery to me why the Bosch site gives the 114, and why the 037 housing is different from 050

Interestingly, it seems PG-3-8 (050) is more technologically advanced than PG-3-5 (037) and with a higher precision:

 

FInally, I changed the Camshaft PS with this new reference, and everything's running fine now.

 

Wow huge price difference between the two sensors the new model is less than half the price. Was it plug and play or did you have to change the wiring connector?

 

What part numbers are you talking about? It would be interesting to know.