If you own a P38 Range Rover you have probably been in the situation where your driving down the road and the air suspension system suddenly develops a fault so it lowers the vehicle down onto the bump-stops leaving you with a very slow bumpy ride home.

Situations like this always seem to happen at the most inconvenient time, your now car less and at the mercy of the local main dealer who says ' we can look at it on Monday week' or 'it's going to be expensive'.

If only you had one of these Emergency Inflation Devices they allows you to manually re-inflate your air suspension using any form of compressed air such as a garage forecourt airline or even a portable electric pump.

This device can either be fitted 'inline' with the original vehicle air suspension system, so it's on the vehicle and ready to use the next time you have a problem or you can keep it in the glove box just in case.

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Fitting instructions

 

Air Suspension Emergency Manual Inflation Device

   

 

Filler valve block

4 x Black & blue tee pieces

4 x 50mm airlines

4 x 250mm airlines

4 x Red blanking pegs & 2 small screws

       

The factory fitted airlines have the push-fit tee piece inserted between them and the EAS valve block, additional airlines go to air valves mounted on a plate fixed to the side of the EAS valve block housing. At any time compressed air can be pumped into each individual air spring bag.

Push-fit connections - If you are unsure how to use these push-fit connections, please practice this technique on one of the tee pieces before attempting any fitting on your vehicle.

To remove an airline - Using a flat blade screwdriver or your fingertip lightly push inwards on the collar surrounding the airline while at the same time lightly pulling outwards on the airline. (The collars are coloured blue on the new tee pieces)

To insert an airline - make sure the airline is clean and not pinched, scored or deformed. Push the airline inwards approximately 12mm (you will feel a slight click).

Pinched, scored or deformed airlines should be cut clean at 90 degrees with a suitable blade or Stanley knife.


FITTING INSTRUCTIONS

Please make sure you read & understand these fitting instructions before you commence any alterations to your air suspension system.  

For ease of photography we have removed the EAS valve block and housing from the vehicle. Removal is not required when fitting this device.

Depressurising  the system - The air suspension system should be fully depressurised before starting working on the EAS valve block. If the Land Rover T4 test equipment is not available to depressurise the system you should park the vehicle at the lowest possible access height and great care should be taken when removing any airlines.


This is the EAS valve block housing, it can be found under the bonnet and is situated just above the passenger side front wheel. 

On the engine side of the EAS housing, you will see seven airline pipes entering the valve block, the ones we are interested in are the block of four, three of these may have colored sleeves.


At this stage there may still be some pressurised air in the springs and tank. Care must be taken as air will be released and the corner of the vehicle relevant to the airline being removed will go down to the bump stops. Check for ground clearance under the vehicle and always wear eye protection.

In turn release each in the group of 4 airlines from the valve block as in this picture. For ease of maneuvering you may find it easier to also remove the slightly larger airline from the valve block as I have and as shown on the right of this picture.


Now firmly insert one of the new 50mm lengths of airline into each of the 4 collars on the valve block.

 


Here is a close up view with the 50mm airlines inserted into the collars.

Now slide a tee piece onto each of the 50mm airlines you inserted at the last stage. 

 


Now firmly re-insert each of the original factory fitted airlines into the corresponding tee piece.

If the t-pieces are strained they will leak.  You may find it helpful to trim away part of the corrugated cover from the original airlines.

This would be a good time to re-insert that slightly larger airline on the right of this picture if you removed it for maneuvering purposes.


The four 250mm airlines now connect between the t-pieces and the valve block.

You can shorten these if you so desire.


Now secure the filler valve block to the EAS housing using the screws supplied.

This is what it should look like now you have finished.

You can now start the engine. The compressor will refill the system which can take several minutes. Check for leaks using a spray bottle filled with clean water and a little washing-up liquid. Any signs of bubbles and you have a leaks, if so check the connections.


 

OPERATING INSTRUCTIONS

If manual re-inflation of the air suspension system is required, it is important to disable the factory electronic ECU system first. The quickest way to achieve this on a P38 Range Rover 1994-2002 is to remove the delay timer which is situated under the front passenger seat, it looks like a black relay and should be the only one under the seat, please check the Part No: ANR4387 or ANR4652 before removing it. Please note: Classic Range Rovers 1992-1995 have a disable switch under the rear of the drivers seat.

Once disabled you can remove the valve cap on any of the new 4 new filler air valves and individually re-inflate the vehicles air spring using any compressed air source, such as a garage forecourt tyre inflator. Although the factory EAS hardware is left intact and fully operational when the EAS Electronic Air Suspension is disabled there is no control over the height. A height of 450mm measured from the centre of the road wheel to the bottom of the wheel arch equates to a motorway setting. Check for leaks regularly as the onboard compressor will not top up the system.

DO NOT OVER INFLATE THE AIR SPRING BAGS - you will be surprised how quickly the vehicle will rise up especially using a garage compressor. Over inflation will damage your air spring bags. They will pop just like a balloon if over inflated.  


FITTED - STAND ALONE SYSTEM

If the air pressure cannot be maintained due to a faulty valve block, the possible cause would be a valve in the valve block is stuck open, the new air suspension device can be used as a stand-alone system. Place the four red blanking pegs provided into the tee pieces in place of the 50mm tubes that go to the valve block. The air valves now feed each air spring bag directly and they are not connected to the EAS system at all. You must still disable the factory electronic ECU system first, as per the instructions above.

EMERGENCY USE - STAND ALONE SYSTEM

If you have purchased this device for emergency use only and intend keeping it in your glove box of your vehicle. It may be worth noting that the filler valves can be temporarily connected directly to the factory fitted airlines as in this picture. You must still disable the factory electronic ECU system first, as per the instructions above.

If you have any questions or need any advice email advice@tawpark4x4.com 

Telephone Advice: 07710 359319