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Discussion Starter #1
I have been searching for the correct hydraulic oil for my Tigra Roof as the bootlid is lethargic and will probably need fresh oil.

On some old forum threads people have said it is just listed as Tigra Roof Oil at Vauxhall.

I have been Google searching and cross referencing part numbers the last few days but I keep coming back to GM Transmission/Power Steering Fluid, part number: 93160540

End of the day the roof is just a pump and rams, not too dissimilar to how power steering works so it wouldn't surprise me if they use the same fluid.

Can anyone confirm this or point out the correct fluid please.

If we sort it then at least it will be handy for future reference for any other Tigra owners. ;)
 

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I went through this immensely boring and irrelevant (to me) video and it finally got into the system (boot and roof all use same pump and fluid) at 47 mins and, at last, they topped up at 53 mins. Commentary: "fill with hydraulic fluid" - and scrupulously avoided showing any brand name. D'oh!
Still, it might be useful for you in terms of the general how-to.

These people make or supply Tigra roof hoses so this might be good stuff for yours - can always check with them first
 

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DO NOT USE TRANS OIL!!!!
The power steering/trans oil is to thick for the roof mechs.
It's not as simple as a power steering system, a lot of small valves etc in the pump unit.
The system uses a 32 weight Hydraulic fluid. ECP sell it but you can also get it from more specialist Hydraulic suppliers or Agricultural machinery dealers for less money. Usually from £2/litre depending on how much you buy? Luckily for me it's the same grade as what I need for my tractor so I get it in 20 litre cans.

I would guess your oil is almost black by now? To change you will need at least 1 litre of oil. I found a 1kg round Haribo tub is the perfect size to sit in the pumps gap in the boot without the risk of being tipped over (sweets are yummy too)
Drain, refill, operate roof at least 4 times full cycles and repeat. Took at least 5 or 6 times to flush all the old oil out of the system for me in my 2006 36,000 mile Tigra. Also lubricate all the pivot points with firstly engine oil then spray grease once you are happy the oil has got in to the pivots.
This video contains pretty much all you need to know about the roof mech.

 

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Discussion Starter #5
The GM Trans Fluid is listed as the specific oil for the roof on several sites, bit of poor work on there end if it is actually wrong.
 

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Discussion Starter #6
Yeah it's quite dark.

Are you 100% sure it's the Yellow Fluid in that link from ECP as I'll click and collect it today.👍
 

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It should be almost a clear liquid.
People will sell you anything. Most do not care.
Some sites tell you its the same as brake fluid!!!!!!! It really is not!!
Over 30 years in the automotive industry and you see some right disasters!
A lot of us on the Facebook group use the Febi roof oil in the link. Remember the roof is not made by GM but a French company who do a lot of other cars folding roofs. The Febi oil is what they recommend.
 

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Discussion Starter #8
Makes sense, think they were built by Herlioz the same French firm who did the Pug 206, the side repeater have a H logo on them with a coach wheel.
 

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Discussion Starter #9
You got my brain working, the pumps look identical on the 206cc, probably are.

I found this link for the 206 cc pump maintenance.



Lists the fluid as: ARAL VITAMOL ZMH

Quick ebay search finds me Mopar/Chrysler and BMW Fluids.

 

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Looks to be the same oil as ECP sell.
The 206cc is very similar to the Tigra. A neighbour has one and looking at them both you can see a lot the same in them. Not looked at the pumps though.
That filling guide is the same as for the Tigra.
 

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Discussion Starter #11
I'll go for the ECP one you recommend buddy, make use of the old discount code, was just an interesting deep dive into hydraulic fluid lol, passed the time. 😁👍
 

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Yes, I've read somewhere that Herlioz did the jobs for Tigras, 206s and others. That cabrio hose manufacturer with the specialist fluid I linked was also £8 or so per litre. If the ECP stuff is the same grade, it's probably economies of scale - doubt if it's expensive to make but a bit of a niche.
 

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Discussion Starter #13
Yeah it's an interesting bit of trivia, Karmen did the Escort Cabbies but they went under too about 2008 if memory serves.
 

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Yes, I've read somewhere that Herlioz did the jobs for Tigras, 206s and others. That cabrio hose manufacturer with the specialist fluid I linked was also £8 or so per litre. If the ECP stuff is the same grade, it's probably economies of scale - doubt if it's expensive to make but a bit of a niche.
Heuliez are the French coach builder who do the Tigra B.
The oil is just the same grade as any Hydraulic fluid used in many machines the world over. So plenty of call for it. They just put a jazzy name on it to sell it to the car world at increased prices. I was made up when I checked the spec and found it was the same as my tractors hydraulic system having 40+ litres of it in the shed.
 
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