Can't imagine you'd see a Bentley, let alone a Bentley wrecker, in Ipswich. But, I did say VW type. Both Audi and Bentley fit into that category, along with Skoda and SEAT... Oh, and Bugatti. Might find one of those on Roderick Street.
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you need to make up one of these.any hyd hose mob will have the bits or truck spares. 6MM Air Suspension Emergency Repair Kit - Land Rover Discovery 2 / 3 - L318 L319 | eBay
IMO that's not a good ideea at all cos once the bags are inflated the air will "navigate" from one bag to the other at each curve and the vehicle will be very "floppy", the better way is to use two schrader valves connected to a piece of pipe each, one for each side and connect them directly to the bags then inflate one side at a time
https://www.ebay.com/itm/DISCOVERY-2-AIR-SUSPENSION-PUMP-AIR-SPRING-MANUAL-INFLATION-BYPASS-4MM-OD-VALVES/282534767304
The pipe with the T piece can be used for the following setup then the system will work normally cos the exhaust valve of the original compressor is needed too
Attachment 169822
Try that number I sent you, he is on here but can't remember his handle. Don't think he comes in here much anymore, he does most if his stuff on facebook and ebay.
I could be wrong, and usually am, but I thought the tube is 4mm on a D2.