mine's the same age .. along with the pierburg maf
100k miles ..
no issues with either ..
( have used oiled air-filters as well .. K&N 'n Pipercross ..
( i alternate between the standard filter .. foam surround removed ..
( and the Pipercross one .. aprox every 6 months
( as when they get dirty .. initial response to the go-pedal drops slightly
( i.e. before the manifold air pressure has a chance to build up ..
"hardly earth shattering" ? .. well it won't be .. it's a diesel
slow reving compared to a petrol job ..
however .. its' advantage be 'torque'
get the power/torque to respond as strongly as possible from low rpm
then change up gears quicker .. ..
do the 'insulated' air-intake mod ..
'n add the t
urbo controller 'dgb1' ..
you won't be sorry
both add to go-pedal response from low rpm
( the 'dgb1' set to "L" shows it's advantage on hilly twisting 'b' roads .. for example )
and if the intake mod is insulated ( including the a.i.t. sensor housing )
then .. no problems with heat soak from the engine bay
( which causes initial sluggish response after heat has built up in the bay
( until the air-flow thru the intercooler takes proper cooling effect ..
( noticeable after being parked up in a lay-by .. then 'getting-away back into traffic
( obviously more apparent in summer months ..
( 'cause the higher air intake temp will cause the 'allowable' fuel injection quantity to be reduced
also .. if your using a pierburg maf ..
you can try the bosch-maf settings on the ronbox ..
but .. as it gives a slightly weaker signal at low rpm
you might notice a tad less initial response from the engine
ron-box setting "10" has the strongest maf map
the other 4 of the pierburg selections are slightly less
( i.e. unless the ron-box has been modified )
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