Company info

4x4Airseals - Uk supplier, manufacturer and innovating company of Air suspension compressor related products serving customers in the Uk and worldwide longer than any other supplier! designing and providing quality products consistently with the kind of technical support that is in short supply with other sellers vital to get your do-it-yourself repair to satisfactory level and with a end result hopefully with your vehicle back on the road.     !  Please save us as a your prefered seller for these products before leaving the listing you are viewing ! navigating back to us on the ebay system in the future can sometimes be a hit or miss experience as the ebay searching system can change on a hourly/daily basis. 

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 Compressor Fault / Kit Diagnosis

 When your garage informs you need a new compressor in our experience you generally do not ! first thing you ideally need to do is have your vehicles diagnostic codes read and write them down (very important insist on it at your garage) and then physically check which type of compressor you have fitted on your vehicle ( Compare Pictures in any of our related listings together with diagnostic code description )

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 Compressors Type

 !  Dunlop Aftermarket Air compressor for Land Rover Discovery /RR Sport / ( Picture 2 ) Dunlop Aftermarket Air compressor fitted to Range Rover tdv8 L322 2005-20011 ( picture 3 look carefully at Dunlop unit should have Green n black power wires and a air dryer cover with 2x 6mm outlet pipes exiting the back of end cap)  ! Note Red n black power wires and 1 x 6mm outlet pipe and 1x 4.7mm diameter outlet pipe are Oem Hitachi units.

   ! We now illustrate at the beginning of our product descriptions for Hitachi and Dunlop/Amk compressors ! the fault code the particular kit you are viewing will help to resolve ! either a C1A20 or C1A13. These 2 codes are the bench mark codes that cause garages/customers to replace or repair their units.

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Diagnostic code Description

C1A2064 ( C1A20 )

Pressure increase to slow when filling gallery  =  Compressor fault  92% of cases  ! Our master repair kit together with fitting instructions recommended.

Other code diagnosis   =   Resorvoir pipe air leak /Gallery Pipe air leak/Intake filter blocked or restricted/Intake pipe blocked or restricted / Air suspension intake silencer blocked or restricted /Air suspension intake silencer blocked or restricted / corner valve stuck open /pressure sensor fault/ Electric motor burnt out / Piston connecting rod broken or jammed.

C1A1364 ( C1A13 )

C1a13 ' Pressure does not decrease when venting gallery ' & c1a20 ' Pressure increase to slow when filling gallery '  = Compressor fault 95% of cases ,! Our Exhaust valve seal & dryer filtration repair kit together with fitting instructions recommended.

Other code Diagnosis =  Exhaust valve stuck closed/Exhaust valve does not hold minimum retention pressure/ Gallery pipe blocked or damaged / Pressure sensor fault / Air suspension exhaust silencer blocked or restricted / Air suspension exhaust pipe blocked or restricted / Reservoir valve block pipes incorrectly fitted (unions reversed)

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Vehicle Models affected

   Land Rover Discovery 3 4 & Range Rover Sport 2004-2012 and Range Rover L322 td6 & tdv8 2005-2012 are the vehicles that can have the aftermarket Dunlop units fitted.

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 Vehicle Compatibility Chart  ! note

     The vehicle compatibility chart at the beginning of most ebay listings is reasonably accurate but can sometimes illustrate your vehicle as not compatible ! Please use our listings info/pictures as the definitive vehicle compressor compatibility information

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Listing Kit illustrated ( Picture 1)

C1A13 ' Pressure does not decrease when venting gallery ' diagnostic code product  ! 

This listing will supply you our Exhaust Valve seals only repair kit illustrated in (picture 1) with fitting instructions suitable for Aftermarket Dunlop Air suspension air compressors only    ! not suitable for the oem Hitachi  . We highly recommend our Dunlop Complete Exhaust Valve repair kit including filtration available in our other listings for best chance of solving a C1A13 trouble code ( picture 5 ).

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Vehicles affected

Discovery 3/4 2004-2010 --- Range Rover Sport 2004-2010 --- Range Rover L322 2006-2009

Support Uk Manufacturing ,

 Hitachi Air Compressor Serial Numbers

RQG500071 RQG500072 RQG500080 RQG500090 RQG500060 RQG500061 RQG500062 RQG500070  LR044360 LR01530 LR015303 LR023964 LR010376 LR045251 UUB504700 VUB504700RQG000017 RQG000018 RQG000019