Nobody experienced DF080 Error?

 

Well, attempted this job today... before starting first thing I did was remove the Dephaser Solenoid, then attached it to a 12v supply.. it works fine, when energised it moves up, when de-energised it moves downwards again.

Then I put on the ignition and tested the wiring, again got a 12v voltage.

so looks all fine in regards to wiring and solenoid.

Then set about timing belt job, I removed top cover, put in the rear cam timing tool and crank pin, first thing I noticed was an incredible amount of slack in the belt between the 2 pulleys... literally could move it up and down almost 10mm..was surprised it didn't slip a belt... at first I thought maybe it hadn't been tensioned up previously but when I put the cam sprocket / pulley locking tool into place on the front the pins on the locking plate went through the holes correctly on each pulley so they was in the correct position for tensioning.

Removed the belt, checked for free play in the Dephaser pulley, none at all completely rigid... so that looks to be fine.

Got new belt on, used all 3 locking tools, tensioned new belt and there's no slack now between the 2 pulleys like there was previously.

SO.... Hopefully it was just the slack triggering the error.

But it does highlight the importance of regular timing belt changes, this timing belt is between 11-18 months overdue and im doing the job for the first time for a customer.

Have to say though that this job is not really the easiest belt in the world, I had to also drain the coolant, and renew the water pump which took extra time also, but its taken me almost an entire day and still not finished because darkness took over.

It took a long time just to get the covers off because of the inaccessibility of the cover bolts.

Then the TDC sensor is a bit fiddly also to get the bolts out.

As I said though, new belt on, all 3 locking tools engage perfectly, so will update if this cures the DF080 Error.

 

Another update,

All back together now, runs fine.

Checked for codes, DF080 was still present from before I did timing belt, so cleared that off.

Started engine up, turned engine off and checked for codes again... nothing now showing.

So looks like the slack belt was the cause of the DF080 error. Going to go back in a few days and check again.

 

Thanks for the thread.

Looks like the old belt had stretched (strange) or was the wrong type.

Did it have a maker`s name/number on it?

 

Must of stretched I couldn't believe it hadn't slipped. Wit it all locked up between the 2 pulley it pressed down a good 10mm

But wasn't badly tensioned because with cam locking tool in the rear. Cam locking plate on front ad crank pin on everything line up correctly. So all 3 timing tools used

Belt was a gates belt with Renault logo on it.
Probably original belt, and overdue as car is 7 years old now as it's on a 56 plate.

Got a new problem now though, when I left it no codes appearing at all, had it running for over 30 minutes no codes all fne.
Still running good but it's come up with check emissions now. So going back to check, will he interesting to see if de phaser error has remained clear proving it was the belt.

 

Been back again, DF080 was causing the check emissions light and service light to come on.

Last time, I was confident it was the slack belt as you could clear the code and moment the engine was started the code would instantly come back.

It doesn't do that any more, so fixed that, they said they drove it about 15 mile down the road, then on return journey it came on.

So I connected up Can Clip again, found DF080, I know the Dephaser is rattle/tapping free and seemed solid enough when I had it apart.. and I also know the solenoid works fine.

So, I removed the solenoid electrical connector, sprayed some electrical cleaner in it, then reassembled... also created some slack on the wiring as it was quite tight with no slack... so its possible they went over a bump or something and the movement pulled on the connector creating the error.

Cleared the code, then run the engine for a good 20 minutes again, and monitored the Dephaser, everything seems to be working fine, it was advancing fine on idle and when fast idle with no returning codes.

Hopefully its cured it now, told them to try driving it around for a few days and see if it comes back.

 

Well apparently after 10miles driving it's come up

Check emissions, and presumebly error df080 again.

So gone from df080 being unable to clear with no warning messages. To DF080 clearing and reappearing after 10-15 miles with message displayed.

I'm sure timing is correct, it starts fine, it idles fine, it revs fine and drives fine. All 3 tools would not of locked either if timing was out.

So Next step is to check again the def number showing for the error df080 I'm guessing that is what's changed which is why error message appears now and didn't before.

I'm thinking it could be that, if you have a slack belt, with de phaser advanced its plausible that it's still within the tolerance range even if de phaser is worn.

But now with a properly tensioner belt, the wear means when fully advanced it could be out of tolerance.

I'm also going to data log it so I can see what's happening at the plug the error is triggered.

 

Quick Update.

DF080 error is now gone, and no more displaying Check Emissions.

Just needed an Injection ECU firmware update and Dephaser solenoid cleaning out, it was sticking intermittently.

 

Hi click4 how did you manage to do the update? Did you need to go to renault?

 

Quick Update. DF080 error is now gone, and no more displaying Check Emissions. Just needed an Injection ECU firmware update and Dephaser solenoid cleaning out, it was sticking intermittently.

Hello , Question, Did you have to go to the agency to update the ECU ?

 

i have the same situation, no synthoms , no check engine light on, the car drive fine , but I knew about the error code (DF080) because I scanned the car