update I have ordered a inpa off ebay so should be able to read codes Tuesday but im taking car to Halfords to get it read tomoz, after reading threads on here regarding thermostats I checked mine today well the temp anyway my cars temp is between 58-62max and on the motorway 62 was the highest it went to giving it some in 3rd gear too, sat in traffic it went to 72 max so im wondering if my car has done a regen in the 19 months ive had it or even longer also could my dpf be blocked now? how would I know this if I change thermostats and it does a regen could that cause a lot of expensive problems, I presume this is why my mpg is 23mpg and also could this be why I have "increased emissions" light on or is that still prob maf or pressure converter? any advice please guys what should I do regarding dpf will the inpa of ebay tell me if dpf is blocked?

 

jesus £200 ish for a new one think I will def get the code read again first don't want to be buying both wish I knew someone close to swap maf see it that works before buying one anyone near Sheffield with a 535d? cheers anyhow fella I will keep the thread updated so ppl know the outcome, nothing worse then threads without an answer at the end.

 

well hope its fixed soon mate,sorry dont know how much a maf is

 

your right just im sure the most recent code check said it was throttle related I will get the code read again in the morning then make a decision to order a new maf or pc first, any ideas how much a new maf is?

 

not 100% sure mate if its maf but car drives fine now and if it was maf maybe it wouldn't , just checking my service book and I cant see its had a fuel filter change at all when its done 103,000 so I will be changing that too, just to double check the maf sensor is connected to the pipe which leaves the air filter is that right.

 

yes mate,thats right,see post number 6 with the link
why dont you think its maf? code reader is telling you its maf control related

 

heres my old egr PC
are you certain you want to discount the MAF sensor for controlling egr??

bottom left square block is electrical connection
2 vacuum lines at right hand side,,1 goes to egr,,1 is supply from vacuum pump line
other square block near the silver ring is the little air filter

 

didn't get the code read today hopefully I will tomoz but last time it said something about the egr flow too high heres a pic off it from last time

 

yes the red one goes to big turbo, I think the pc which connects to my egr is bolted to the back of the manifold someone on ebay has offered one at 35 with 3 months warranty

 

no mate I removed swirl flaps 16 months ago, im wondering if the electri plug to the egr pc isn't connected properly or maybe its just knacked think I will get the one of ebay I can always sell it on if its not that.

 

this is a better picture of the top again

I think I have got confused with electric valves and pc as they bother have electric plug and 2 vac lines, do you know what this is?

 

Thought I didn't recognise bottom pic.I take it that the red line is from your big turbo then.I'm pretty shure without looking that realoem gives different part numbers for the 3 PC,s on 535d.maybe different specs cos they look the same

 

The top looks like electric valve.egr PC connects indirectly to swirl flap activation.you should be abke to trace the vacuum line from the egr into the middle of the block.right hand side as you liok into engine bay.there you will see PC with an electric socket at ine end and two parrallel vacuum lines coming off it at the other..I'm on my fone and can't seem to attach a pic of my old one.when I get in I will try again.

 

also im not sure they are pressure converters and are electric valves or is this the same thing does anyone know?

 

the top one is connected to my swirl flap control its exactly the same as the bottom picture which connects to my turbo I swapped them round but it seems they both work the same. im wondering if the top pc should connect straight to my egr and not the swirl flaps I removed the swirl flaps but wondering if I didn't connect the vacuum pipes up correctly, ive looked on realoem to find the vacuum set for swirl flaps but I cant fine it.

 

Can't really make out the top pic.bottom one looks like a PC , but not off your car.hetes the old one I removed from mine

 

is this the pressure converter?

its the same as this one not too sure if this is what I need to order?

 

Think I will get the code read again tomoz and I do think it is the pressure converter just its £85 wasted if not and if it was the maf then I think I would have driving issues I know I did on my old Vectra when that started packing in, just if I knew there should be suction for the egr to operate itall the time which im 95% sure there should be then it must be the pc as theres no suction at all from mine if you get time to pull the vac hose off a second to check I would really appreciate it, I don't have my plastic cover on so its a quick job but most people would have to remove plastic to check, thanks anyway mate if you get time or not think I will order a pc tomoz anyhow the car drives fine just annoying ping everytime I get in the car with the error code.

 

RealOEM.com   BMW E60 535d Vacuum control-AGR
part number

 

when my egr pressure converter broke,,,,,my "other" symptoms were,, very crude engine damping,really rough acceleration sounds,,just sounded pretty un-loved
very very noticeable engine damping returned, to make it a refined placed to sit ,when egr pc replaced

 

Think I should buy a pc too do you remember the part number or the website you ordered it from? if anyone has a 535 and don't mind pulling the vacuum pipe off egr to check if theres suction on idle and more when revs applied you may need a code reader incase a fault shows to turn it off again but I don't think it will if vacuum pipe is only off for a few seconds that would help a lot confirming mine should do the same and I definitely need a new pressure convertor. thanks

 

i could have a look ,but couldnt give a time as im pretty much tied up all weekend
reading your code tho , tells me this
egr operation fault due to MAF operation incorrect
these sensors dont last forever and cleaning them hardlies ever is the solution

 

egr PC shares its vacuum lines with the engine mounts
no,i dont think they share with the "hydraulic" ie oil filled tappets,,shamon!
if youve eliminated the sensors then change the PC mine was approx £80

 

I cleaned the maf and map sensor and the car runs perfect no issues at all so if the egr isn't opening due to pc then I don't think you would have any running issues apart from high emissions fault which I have, also do you know if the same vacuum supply for egr is connected to hydraulic lifters? a friend says the tapping noise we can here when you remove oil cap sounds like tappets and this could explain it if they do share the same vacuum supply, what do you think? cheers

 

RealOEM.com   BMW E60 535d Hot-film air mass meter/clean air pipe

 

I would be looking at the MAF sensor first,,removing it for cleaning,checking connections,,etc
i think i would even replace this if cleaning doesn't work
certainly an easier option for now,rather than changing the PC

 

off the top of my head ,my code was 4502?? ,which led me to the pressure converter.yours are different codes.,is it running lumpy?too much egr at tickover can lead to poor starting and bad tickover.
i cant remember for certain if its supposed to pull vacuum at idle.mine certainly didn't,(and i havn't checked if it does now since replacing the P.C.