tag axle service

Joined
Apr 11, 2023
Posts
86
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Location
TA21 9HX, UK
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95,159
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just looking
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Hi again Funsters, I wrote this somewhere else but it must not have highlighted as no responses, unlike you happy lot!
Refresh, I am/was in the throes of making an offer for a 2008 Burstner i821 G with comfortmatic, only mid 30k mileage, but as private sale, and the horror stories from those who have problems, I am sure a minority but...no warranty, so I thought I had better do some research on the potential costs to repair. What I found sort of blew me away, Chelston Motorhomes is a mile down the road, they nearly laughed at me, said we do not work on anything we have not sold, ok said I where would I go? no answer was the reply! so got in touch with Vospers in Exeter, just 20 miles down the road, fiat professional service agents, whoooo, they said, we have one of those in at the moment (Comfortmatic that is) we have had the box out twice trying to sort a clutch issue, still not fixed...and we could not 'do' your tag axle as it is too long for our lift, pits, it seems are only for trucks these day! Ranf Huttons in Weston Super Mare, also fiat professional workshop, same thing, too long for our lift, try Motus in Gloucester, so I did, they said yes we can repair it, gearbox has to come out down obviously we would work off the floor, but, but but, again much sucking of teeth, saying if you ask our advice walk away! new box £8k, just the solenoid system £2k, they are quoting a clutch as 12 hours labour, so with the VAT about £1,500 plus parts, some £750 including the dmf at a guess.
So Funsters, there are of course a relatively low proportion of tag axles out there, but still a significant number, it appears that a man in a van is unlikely to have the specialist knowledge and tools to work on these things, yet most of the problems once properly diagnosed appear to be relatively simple, the issue is proper diagnosis how do you all manage, those of you with Comfortmatics and or Tag's? Am I wrong in my thinking?
 
The conformatic will happily sit on the flat stationary in either D or R provided that you use NO accelerator. The use of accelerator makes the clutch bite immediately so if you left foot brake and use the throttle you will overheat the clutch.

If you are on a hill then you either use the footbrake with your foot off the throttle or you do a traditional hill start.

Hill starts should be performed as you were taught on your driving lessons using the handbrake!

Left feet are for clutches only - not brakes.
 
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My comformatic is 6 years old now and never had an issue with it, I have also only done ~13000 miles total (mostly long journeys) and had it from new. A supplement comes with the documentation telling you how to operate it. But as previously said it is all good diving habits anyway. Shuffling to the brake in slow moving traffic a lot probably means you are driving way too close to the vehicle in front. It will happily crawl along in idle also. Holding a 3T+ vehicle on the clutch on a hill even with a manual gear box is just asking for trouble, ask a HGV driver if they do this? If you treat a motorhome like a car then you will have issues eventually.

I fully expect my comformatic clutch to last longer than a manual clutch as it is probably more efficient at changing gears than me :giggle: reducing clutch wear. It is also a pleasure to drive. The only time I have to think about it is when I want it to hold higher revs for longer in certain circumstances, so I engage the "UP" button. (stated for heavy loads on steep gradients, it's a button to press on the dash)

I suspect the "bad press" is a minority of users, there are thousands of these things out there.
Talk to many people and they wouldn't touch a Fiat, Peugeot, or Citreon with a barge pole either as a general rule, again because of "bad press" in its many guises.

Buying any vehicle second hand is always a gamble we accept. You could get a manual turn out to need new fuel injectors, clutch and who else knows what...

Consider that if the thought of repair bills is a show stopper, perhaps this isn't for you. Motorhomes are always, always expensive in the end. My last service cost £1000 just because the timing belt is due every 5 years... Let's not even start to talk tyres...(or fuel bills for that matter)
 
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My comformatic is 6 years old now and never had an issue with it, I have also only done ~13000 miles total (mostly long journeys) and had it from new. A supplement comes with the documentation telling you how to operate it. But as previously said it is all good diving habits anyway. Shuffling to the brake in slow moving traffic a lot probably means you are driving way too close to the vehicle in front. It will happily crawl along in idle also. Holding a 3T+ vehicle on the clutch on a hill even with a manual gear box is just asking for trouble, ask a HGV driver if they do this? If you treat a motorhome like a car then you will have issues eventually.

I fully expect my comformatic clutch to last longer than a manual clutch as it is probably more efficient at changing gears than me :giggle: reducing clutch wear. It is also a pleasure to drive. The only time I have to think about it is when I want it to hold higher revs for longer in certain circumstances, so I engage the "UP" button. (stated for heavy loads on steep gradients, it's a button to press on the dash)

I suspect the "bad press" is a minority of users, there are thousands of these things out there.
Talk to many people and they wouldn't touch a Fiat, Peugeot, or Citreon with a barge pole either as a general rule, again because of "bad press" in its many guises.

Buying any vehicle second hand is always a gamble we accept. You could get a manual turn out to need new fuel injectors, clutch and who else knows what...

Consider that if the thought of repair bills is a show stopper, perhaps this isn't for you. Motorhomes are always, always expensive in the end. My last service cost £1000 just because the timing belt is due every 5 years... Let's not even start to talk tyres...(or fuel bills for that matter)
Hi, thank you for the considered response, I have bought many used vehicles in the past but they are known quantities, however any 'gambler' does his best to stack/understand the odds in his favour, especially a relatively unknown, at least to me quantity, which is what I am doing, understanding the risk and the cost of that risk is part of the due diligence decision making process. Had I listened to all the main dealers I have spoken to you would not touch them with a barge pole, not sure Fiat would be too happy about that! But, I would like an automatic, I had not found an independent service facility until yesterday, when a couple of you lovely Funsters recommended a few local service centers, one near Exeter, and one in Nailsea, both within 40 minutes, with a 3rd in Liskeard. I have just had a great conversation with John from JRW Commercials Nailsea, the first people to actually have a lift that will take a tag axle, and whilst there are issues, most are down to lack of use, improper or lack of correct maintenance and or operator error. That makes me feel much more comfortable.
 
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My comformatic is 6 years old now and never had an issue with it, I have also only done ~13000 miles total (mostly long journeys) and had it from new. A supplement comes with the documentation telling you how to operate it. But as previously said it is all good diving habits anyway. Shuffling to the brake in slow moving traffic a lot probably means you are driving way too close to the vehicle in front. It will happily crawl along in idle also. Holding a 3T+ vehicle on the clutch on a hill even with a manual gear box is just asking for trouble, ask a HGV driver if they do this? If you treat a motorhome like a car then you will have issues eventually.

I fully expect my comformatic clutch to last longer than a manual clutch as it is probably more efficient at changing gears than me :giggle: reducing clutch wear. It is also a pleasure to drive. The only time I have to think about it is when I want it to hold higher revs for longer in certain circumstances, so I engage the "UP" button. (stated for heavy loads on steep gradients, it's a button to press on the dash)

I suspect the "bad press" is a minority of users, there are thousands of these things out there.
Talk to many people and they wouldn't touch a Fiat, Peugeot, or Citreon with a barge pole either as a general rule, again because of "bad press" in its many guises.

Buying any vehicle second hand is always a gamble we accept. You could get a manual turn out to need new fuel injectors, clutch and who else knows what...

Consider that if the thought of repair bills is a show stopper, perhaps this isn't for you. Motorhomes are always, always expensive in the end. My last service cost £1000 just because the timing belt is due every 5 years... Let's not even start to talk tyres...(or fuel bills for that matter)
BTW, forgot to say, I always try to leave a decent gap, unfortunately no one respects that with today's 'me first' habits, someone will immediately jump in the gap.

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Hi, thank you for the considered response, I have bought many used vehicles in the past but they are known quantities, however any 'gambler' does his best to stack/understand the odds in his favour, especially a relatively unknown, at least to me quantity, which is what I am doing, understanding the risk and the cost of that risk is part of the due diligence decision making process. Had I listened to all the main dealers I have spoken to you would not touch them with a barge pole, not sure Fiat would be too happy about that! But, I would like an automatic, I had not found an independent service facility until yesterday, when a couple of you lovely Funsters recommended a few local service centers, one near Exeter, and one in Nailsea, both within 40 minutes, with a 3rd in Liskeard. I have just had a great conversation with John from JRW Commercials Nailsea, the first people to actually have a lift that will take a tag axle, and whilst there are issues, most are down to lack of use, improper or lack of correct maintenance and or operator error. That makes me feel much more comfortable.
Further to that I have just had a good conversation with Julian from Devon Trucks, he is happy to deal with it as advised earlier, he has no problem with the length, his view on the gearbox was that it is probably not a lot different to the Merc and Ford boxes also with robotic control, water ingress can be an issue, but that would be same with anything, John actually said that the wiring loom was a bit too short on earlier ones and can pull on the terminals, loom lengthened subsequently, I wonder when subsequently was ?! Feeling much more confident now, as they both said, if it drives ok, it is probably ok, just check for any clutch slip on pull away.
 
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And it won’t need a cam belt as that 3ltr is a chain 👍
Your not wrong Phil!, this mail trail goes back a fair way, and that was one of my main plus points for the engine in the beginning, from what I see the only real point of failure there is the fuel filter housing, something and nothing, if it hadn't been changed you would do it anyway! Thank you for all your help and advice, much appreciated!
 
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Your not wrong Phil!, this mail trail goes back a fair way, and that was one of my main plus points for the engine in the beginning, from what I see the only real point of failure there is the fuel filter housing, something and nothing, if it hadn't been changed you would do it anyway! Thank you for all your help and advice, much appreciated!
Enjoy your new toy and I wish you many great trips 👍
 
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