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Citroen relay Euro 6 notchy gearchange?


posty

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Hi - anyone out there own a Citroen Relay Euro 6 2.0 130 bhp based van?

I bought one from new last year and having issues with notchy gearchange, especially upshifts - anyone having this problem or even have this type van without problems please advise.

PS I was persevering as I hoped gearchange would get better but having done nearly 7000 miles, it is still the same.

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Welcome to the Out&AboutLive forums, Tony.

 

I don’t know how different the gearbox and gear-change linkage might be for a Citroen Relay (or Peugeot Boxer) with the 2.0litre Euro 6 powerplant compared to a Fiat Ducato, but the gear shifting of my 2015 Ducato-based motorhome was decidely ’notchy’ initially. Now, after some 16,000 miles, the notchiness has gone (though gear changing is still hardly of the hot-knife-through-butter variety).

 

This YouTube video

 

 

suggests spraying the gear-change linkage with a penetrating-oil product like standard WD-40, but I wouldn’t recommend doing this on a vehicle as new as yours. However, from early in my motorhome’s life I have regularly sprayed the gear-change linkage with this stuff

 

https://wd40.co.uk/specialist/anti-friction-dry-ptfe-lubricant/

 

and that immediately reduced the original notchiness - so you might try doing this.

 

Gearbox additives are marketed and, in the dim distant past, I found that these could improve gear-change quality significantly. But, once again, it would not be a good idea to use a gearbox additive with a newish vehicle.

 

Hopefully there are forum-members who own, or have hands-on experience, of Euro 6 Relays/Boxers with the 2.0litre motor and can advise on the gear-change quality.

 

It may be normal for it to take a lot longer than 7K for the gear-change quality to smoothen up, or an adjustment to your vehcle’s linkage would help, or there’s a genuine fault.

 

What does the vendor of the van (is this a van or a motorhome?) say? Has the ‘notchiness’ been demonstrated to a Citroen agent?

 

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I believe the Relay uses the same MLGU gearbox as the Ducato. My 2016 Ducato gearbox was also slightly notchy from new. I recently drained and refilled it with 2.9 litres of Tutela Matryx fully synth oil and it has made a marked difference to the smoothness of the gearchanges.
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Tutela Matryx is a fully compatible GL4 transmission oil which some Fiat techs recommend for the 6-speed box. The factory fill is a more basic Tutela GL4 oil and I believe Citroen use a similar spec basic Total oil for the factory fill.

 

As long as you stick to a GL4 (not GL4+) oil of the correct viscosity there won't be a problem.

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The gearbox fitted to the 130 HP Relay or Boxer is almost the same as Ducato. The only difference is that the Relay has an external slave cylinder whilst the Ducato slave cylinder is inside the bell housing. Everything else is identical. It's worth changing to the GL4 synthetic oil , since besides improving the gear change, synthetic oil does not mix with water/moisture. Any oil other than GL4, or some additives, may damage the synchro elements in the box. I advise not changing the oil in the warranty period, since if you are unlucky enough to have box failure, it's common practice to have an oil sample analysed before repairs are carried out.

 

Mike

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Wow that is technical stuff, I am now In Turku Finland At the world championships for dogs. Agility. That trans axle on the front having a gear box on fiat ducato is very simple. What is not simple are the engine mount and gear mount brackets and their location. Check that these are in order. I can not upload the gearchange now, but i will do it later.
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Thanks to all those who replied - I did see the video about lubricating the linkages and have done that with spray grease - havent had a chance to drive the van since but does feel a little better when moving gear shift lever - also removed the leather gaiter around the gearknob and checked for lube on the linkage in there (was plenty of grease on the mostly nylon linkages inside.)

 

As for changing gearbox oil - for reasons outlined in one of the replies, I am loathe to do that with the van only 1 year old and 2 yrs left to run on the warranty.

 

Thanks all and I hope for better gearshift post lube as described.

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