Member Since: 26 Oct 2012
Location: Nottingham
Posts: 74
Just done mine, 92k '07' - was quite gunked up though not as bad as some on here, cleaned it up and went out for a 20 mile round trip and certainly feels smoother and keener at low revs and generally smoother The Father wove the skein of your life a long time ago. Go and hide in a hole if you wish, but you won't live one instant longer. Your fate is fixed. Fear profits a man nothing.
Cleaned my MAP sensor, I get smoother power delivery, I can hear the turbo now, I'm getting 32mpg on strait roads and 34.5mpg on motorways. Pulling away seems stress less and with the caravan hooked on, pulling away and cruising is effortless now. Everything is smoother. Map sensor was bunged up at 55.000 miles, and things felt rough and lumpy before cleaning the MAP sensor.If in doubt, It's time for a Cuppa.
Land Rover Level 2 Off Road Course Completed (Peckforton Castle LRE).
2009 Discovery 3 2.7 TdV6 SE. Zermatt Silver. Gone but not forgotten
2007 Discovery 3 2.7 TdV6 SE. Zermatt Silver. Gone but not forgotten
2006 DEFENDER Td5. Green. Gone but not forgotten
Tin tenter.
Cleaned MAP sensor this morning with 175kkm. It was indeed dirty. However not as some of yours I have noticed.
I do not use any additions to the diesel fuel. No EGR blanked.
Car has regular and scheduled maintenance at the dealer in Rotterdam.Discovery 3 HSE
Last edited by martinV on 3rd Jan 2014 2:30 pm. Edited 1 time in total
9th Nov 2013 9:49 am
v8bobtail
Member Since: 11 Apr 2009
Location: Wisbech cambs
Posts: 111
MAP sensor well gunked up! removed and cleaned, test drive and I think it has made it slightly more responsive.
9th Nov 2013 7:01 pm
gaz
Member Since: 08 Sep 2012
Location: liverpool
Posts: 30
mine was blocked solid.
Landy was smoking heavily under heavy acceleration but fine otherwise. Just a quick run and it seems better. Will post pics
Last edited by gaz on 11th Nov 2013 5:46 pm. Edited 1 time in total
As you slide down the banister of life
may no splinters point your way
Disco XXV
RRS2 Autobiography Dynamic MY16
Discovery Sport HSE Lux MY17
Evoque HSE Dynamic MY16 (Gone)
RRS2 Autobiography Dynamic MY14 (Lovely car but preferred the Disco!)
Disco 3 Tdv6 HSE MY05 (owned for 11 years and now gone)
Range Rover Sport HSE MY11 (Gone)
Freelander2 SE (Gone but the most reliable car we've ever owned)
Disco 2 V8 (Gone)
11th Nov 2013 5:25 pm
kona_221
Member Since: 24 Oct 2013
Location: Cambridgeshire
Posts: 99
EGR Blanked last week and MAP cleaned today. I will have to see how it drives now!
12th Nov 2013 2:05 pm
Iguana
Member Since: 14 Oct 2013
Location: 'Sunny' Zomerset
Posts: 9402
Just done my first bit of maintenance on the car
Pic before cleaning - Bit gunked to say the least!:
And after:
Also added 250ml of 2 stroke....will see if it makes a difference
I can't blank my EGR's yet as I don't think you can for a 2008 D3......so re-map next, but need to save for this
14th Nov 2013 12:33 pm
Andym01207
Member Since: 01 Mar 2012
Location: County Durham
Posts: 412
Just done mine 08 with 62K and it looked like most on here.
Quick run round the block to see if it still worked and I don't see a noticeable difference. Will have a longer run later
I dont feel it has a terrible loss of power, just feels like its strangled a bit...
Having blanked the EGR on our previous TD4 FL and changed the pipes for silicone, I couldn't believe the amount of crud I got out..the EGR was almost blocked.
So I assume the Disco is probably in a similar state? What are the options, if any, for cleaning?
Holy smokes...to those of you with a V8 4.4L like me...good luck! It almost qualifies as a body off job! What a pain in a** it is to reach the MAP sensor which is located on the Rear of the engine on the back side of the intake manifold. I was laying across the top of my engine and had to use a mirror to even see that damn thing. My sensor looks much different than the diesels, it's longer and has 4 slits in it.
To make matters worse the thing was pretty clean when I pulled it out. Oh well, good to know it's clean I guess. Won't be doing that again, like ever!1998 Discovery LSE - Gold, 249,000+ miles, completely stock
2007 Range Rover SC - White, 63,000 mi
2006 Discovery 3 HSE - Locking E-Diff, Rover Specialties rock sliders, 275/65/18 Cooper STT PRO, LLAMS suspension controller, LR Expedition Roof Rack. Asfir Rear Diff, Tactical 4x4 (Gas Tank Skid, Rear Bumper, and Front Bumper w/12K winch), Traxide Split Charge System, Overland Solar + Lensun Solar panels
BBS Nanocom Evolution and Gap Diagnostics IID BT Tool
17th Nov 2013 1:44 am
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72849
Daft question but do V8s have EGRs? I know some petrol engines do have them but no idea re this lump.
17th Nov 2013 9:56 am
Iguana
Member Since: 14 Oct 2013
Location: 'Sunny' Zomerset
Posts: 9402
Another Daft question........
Since cleaning the Map sensor the 'Water in Fuel' message that I was getting near constantly has now completely gone.....Any relation at all to the cleaning?
Thanks
19th Nov 2013 3:51 pm
Marklangdown
Member Since: 21 Jan 2012
Location: Devon
Posts: 19
Map Sensor Clean
Had a look at mine last week and it was mucky. Not as bad as some on here with the hole blocked but waxy nonetheless. I wiped it off with some kitchen towel and in doing so pushed some in the hole! Managed to shake out most of it but could see some on the edges.
Decided to bite the bullet and clean it out with Unipart Brake and Clutch cleaner spray. Squirted it in the hole (from a distance) and kept shaking out the black liquid that followed. Kept doing it until it went clear. Left it to dry on top of the AGA and refitted.
Following day I went on a 100 mile trip up the A303. Mostly travelling at 70 - 75 mph. The trip meter would normally show 27.5mpg. This trip it showed 32.5mpg!
Maybe the placebo effect but it appeared a bit more responsive too.
From what people say here, the sensor is a diaphragm. If it gets waxy oily deposits on it, it must hinder performance. So did cleaning it make it efficient again.
Just an interesting outcome that I thought I would share with you all.
18th Dec 2013 11:45 pm
amphoto
Member Since: 29 Dec 2013
Location: Leek
Posts: 22
MAP cleaned today now what's next oh yes the key fob receiver wiring loom
3rd Jan 2014 2:12 pm
gaz
Member Since: 08 Sep 2012
Location: liverpool
Posts: 30
Mine started smoking, running rougher and drinking the juice again today. So I pulled it out again and it is fouled.
Cleaned and as good as new again. It must be either the egrs or a Turbo seal. It looked like it was full of tar.
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removed and cleaned, test drive and I think it has made it slightly more responsive. 
