TD5 air box sensor????

I am currently experiencing an issue with my TD5 Defender and am checking various sensors within the engine management system.
The sensor that is fitted in the side of the air box it measures air pressure in the air box (I think) has a part number of MHK100600L the one fitted to my vehicle has a part number of MHK100600.
Looking on the internet the one fitted to my vehicle appears to that fitted to a MINI.
Is there any difference in these two parts or is that the L in the part number stands for a Licence to print money Main dealer prices MKH100600L is £320.00 and the MKH100600 is £170.00 a difference of £150.00 pounds.

Iirc its just a temp sender.
Theres the maf which is a common fail point and the map sensor which is top of the inlet manifold and also causes issues

Rave says,


• Control of the EGR system.• To reduce exhaust smoke emissions while driving at high altitudes.• To maintain manifold boost pressure. and a reading of 5 volts a high pressure. The ECM uses this signal for the following functions. volts proportional to the pressure level of the air in the air filter housing. A reading of 0 volts indicates low pressure and will oscillate in accordance to changes in air pressure. The AAP sensor produces a voltage between 0 and 5pressure to the ECM. The AAP sensor works on the piezo crystal principal. Piezo crystals are pressure sensitive The AAP sensor is located in the top of the air filter housing. It provides a voltage signal relative to ambient air.


In the event of a AAP sensor failure, the ECM will use a fixed default value from its memory.• EGR altitude compensation inoperative.• Turbocharger boost pressure limited to 1 bar (14.5 lbf.in 2 ).• Active boost control inoperative.• Altitude compensation inoperative (engine will produce black smoke).In the event of an AAP sensor signal failure, any of the following symptoms may be observed:

A lot of electronic components are fairly generic and come from outfits like Bosch and Seimens, so it's not surprising it appears in other vehicles. I have a spare one of these somewhere. If you'd like to try it, PM me an address and I'll stick it in the post for you (if I can find it, that is!). It might help to try a fresh one and see if it makes a difference.

Replace the MAF sensor, just did mine and its made such a difference even the wife noticed

Brown said:

A lot of electronic components are fairly generic and come from outfits like Bosch and Seimens, so it's not surprising it appears in other vehicles. I have a spare one of these somewhere. If you'd like to try it, PM me an address and I'll stick it in the post for you (if I can find it, that is!). It might help to try a fresh one and see if it makes a difference.

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Yes Brown you are correct generic part the two part numbers are for the very same part with an L Land Rover without an L Rover Mini and £150.00 price difference. This was confirmed by main dealer he also said that the land Rover part is no longer available from Land Rover only the Mini part number is available.
Thank you for the offer to try your spare but I am OK now my concern was a component giving false readings because it was not compatible with the TD5 engine management system.

chilipepper said:

Replace the MAF sensor, just did mine and its made such a difference even the wife noticed

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My issue was not the MAF sensor.
See my other post "Under the weather TD5"