I have a C5 2.2 HDI automatic, which has a sport mode option on the gearbox. I can't remember ever using it before but I suspect that a recent software update has messed up the gearbox, so I tried it out yesterday. The gear changes do not take place until 4000 rpm, which seems ridiculous for a diesel. Has anyone any idea at what revs this gearbox should change gear in sport mode?
In normal mode, the gear changes will take usually take place at between 2000 and 2500 rpm, unless the car is pushed to its limit, when the changes normally take place at no more than 3000 rpm.
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What did you think sport mode was for? It will delay the upchange of the autobox so you can make rapid progress.
If your just driving around normally & want a relaxing drive then you dont want it set in sport mode, leave it in normal mode.
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I am well aware what sport mode is for but 4000 rpm seems an awful lot of revs for a low revving diesel with masses of torque. It is a big change compared to the normal gearbox mode and I feel that nearer to 3000 rpm would appear to be more reasonable. At 4000 rpm it would never get in to 4th gear in most circumstances.
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I think 4000 rpm is about right... it is roughly the change point I use when pushing my older Citroen diesels in the lower gears.
Surely you can have it in sport mode but by feathering the throttle then force it to change up a little earlier??
I find this situation worse on very small engined autos with a sport mode.... in standard mode they change up before the engine gets going and in sport mode rev their nuts off but don't go much faster.
M.M
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It will change a little earlier from first to second gear but not in the other gears.
I don't understand the need for the setting really, as this is an auto-adaptive box, that varies gear changes depending on the way the car is driven, so if you push it harder, the gear changes take place at higher revs anyway. In normal mode, the changes take place at a little above 3000 rpm, if the car is really pushed hard.
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so whats the problem? leave it in normal and enjoy!!
pretend the switch isn't there.
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The upshift point will depend on throttle position (i.e. load) and engine rpm. So pressing the throttle harder will mean it shifts up later and gentle use of throttle will result in upshift at lower rpm. Selection of the 'sport' mode merely applies an rpm offset to the shift pattern, so upshift occur at a slightly higher rpm. Gentle use of the throttle should result in changes at similar, or only slightly higher, rpm as normal mode. If you are saying that it won't shift from 2-3 at under 4000rpm with even a light throttle then I would say something is wrong with the software...
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If you are saying that it won't shift from 2-3 at under 4000rpm with even a light throttle then I would say something is wrong with the software...
That is exactly what I am saying. It means it isn't usable, as it would never get into 4th gear under the legal limit.
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so whats the problem? leave it in normal and enjoy!! pretend the switch isn't there.
I do leave it in normal, as I can't recall using it before. I was trying it out simply because the software update has produced some odd behaviour in normal mode and I wanted to see if there was any sign of a problem in another setting.
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Sadly I have never liked this autobox... be it an older/newer model or on old/new software.... and many folks have the same views.
Back in 2002 I posted this after that kind chap from Brazil we used to have here let me take a test drive in one...
****The auto gearbox is mated to the diesel engine with the most inappropriate change points. If you are driving along sensibly it changes up too early every time and drops the engine to about 1700rpm in the next gear. This is below the useful boost/torque figure and it then grumbles and vibrates its way until 2000rpm is passed. The alternative is to select the Sport setting on the gearbox when it makes more noise but goes about the same.****
M.M
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I have to say I don't find 1700 rpm too low, in normal driving. If you push it along a bit harder, it will keep the revs higher. I did't have any complaints about the gearbox at all, until the update was done and always thought it was one of the nicest auto boxes I had come across. I didn't even know the update was going to be done, as I initially took the car in with an anti-pollution fault. Citroen UK's technical department won't even communicate with me by email, so I am at the mercy of the dealer who messed it up in the first place.
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Whenever a multiplexed Peugeot / Citroen is hooked up to the dealers computer, if there are any BSI / ECU or autobox ECU updates available they will get downloaded & installed.
Its part of the free technical upgrade service according to the leaflet from Peugeot looking for servicing work that dropped through my letter box last week.
Another bit of information, they will NOT remove the updates & go back to a previous software version, you are stuck with them until a new update is released ( Knowing PSA that wont be too long )
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This is the first time that I have been told that an update has been carried out. It was done when the car went in for diagnostic work to try to find the cause of an anti-pollution fault and I was charged about £81 for the total job, which seems a bit excessive for a diagnostic check alone, if the software updates are free. They told me at the time that there wasn't an anti-pollution fault but that the reason that the car's ECU was reporting one, was due to corrupted software. This proved to be a false diagnosis, as there was indeed an anti-pollution fault, so what I paid for, at the time, was a complete waste of time and money.
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£81 is cheap for a hours labour at a Peugeoy / Citroen dealer
Anti pollution fault covers lots of issues with the engine.
The software updates are only free either under the original 3 year warranty or if you take the car in for service / repair.
If you just walked in off the street they would charge you 1 hours labout to update the software.
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Back to the top a bit i know, but I'be got a Saab 1.9 Tid 150bhp diesel and find at 4k revs it still has power there, if i changed a 3k i would be constantly changing up it gets there that quick,
Would have thought a 2.2 Hdi would still have loads more power to go, Had a 1.6 Hdi in a 407 for a while, you had to rev that or you wouldnt get anywhere, lovely car but just had no go at all.
Paid £80 for an hours labour at Saab dealer, all to remove the seat and get the coins that were rattling, will check better next time before i book it in!!
Jon
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