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BMW 3-Series (E90 E92) Forum
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Shocking MPG
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| 03-18-2013, 03:17 PM | #1 |
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New Member
1
Rep 13
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Shocking MPG
Hi all,
Im driving a 320d E90, Current MPG is about 30Mpg, I have cleaned the EGR valve (It was fair bad !! ) EGR temp was only 60 deg, now its up to 80-85 deg...done a full service, noticed that one of the intercooler pipes was broken, replaced that, also changed the glow plugs.... What can I do next???, |
| 03-18-2013, 06:13 PM | #2 |
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Second Lieutenant
 
2
Rep 288
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add some acetone to the fuel, 2oz per gallon of fuel in the tank in addition to whatever lubricity additive you are using, it will help clean the injector nozzles and the inside of the combustion chambers
Also, check air filter |
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| 03-18-2013, 07:32 PM | #3 |
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Second Lieutenant
2
Rep 288
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also, the thermostat is an area of contention on the turbodiesel, not allowing full engine warmup (causing poor mileage). check the coolant temps and warmup time to see if the thermostat is malfunctioning
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| 03-21-2013, 12:12 AM | #4 |
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Gunny
30
Rep 623
Posts
Drives: '07 E90 335i 6MT, 2016 F10 535
Join Date: Sep 2007
Location: San Diego, CA
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Poor mileage? What is the normal/advertised MPG as opposed to your 30MPG? Probably close to 40, I would imagine.
__________________
 2007 E90 335i 6MT, ZSP, Nav, PDC, CA, Montego Blue, Terra Dakota leather, CDV, clutch-stop, E46 M Shift Knob, Logic HVI, JB4 PnP, MS 3" downpipes, Koni Yellow adjustable sport shocks, RE 12mm(f)/BMS 15mm(r) spacers, Blacklines, LUX 5.0 LED halo ring lights, DAEOS (Vista) harness, GP Thunder 7500k fogs, 35% sides-20% rear tint, matt black kidney grill, matt black 335i trunk badge |
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