E91 Straight Six Bearding
Discussion
Hey Zippy,
Also to do with the electric thermostat that they have which changes the temperature set point. A bit like this:
https://www.youtube.com/watch?v=A2AfMX1PcwU
It's the other way around though:
Hotter at low load/speed for efficiency - Think hotter oil temperatures, lower friction, hotter metal temperatures, less combustion heat losses to the cylinder walls.
At high load/speed, it drops the temperature for engine protection so it doesn't over heat and also helps mitigate against things like knock
Also to do with the electric thermostat that they have which changes the temperature set point. A bit like this:
https://www.youtube.com/watch?v=A2AfMX1PcwU
It's the other way around though:
Hotter at low load/speed for efficiency - Think hotter oil temperatures, lower friction, hotter metal temperatures, less combustion heat losses to the cylinder walls.
At high load/speed, it drops the temperature for engine protection so it doesn't over heat and also helps mitigate against things like knock
Lads
I had to jump start my E61 yesterday. While I had the bonnet open [on my E91] I noticed some leaves and gunk near the hinges so I tried to scoop them out. Then to my surprise I found a little black plastic gauze thing - on both sides. What does this do - I know it is catching rubbish - but where does it go if it is not caught - whats down there?
I had to jump start my E61 yesterday. While I had the bonnet open [on my E91] I noticed some leaves and gunk near the hinges so I tried to scoop them out. Then to my surprise I found a little black plastic gauze thing - on both sides. What does this do - I know it is catching rubbish - but where does it go if it is not caught - whats down there?
IcedKiwi said:
Hey Zippy,
Also to do with the electric thermostat that they have which changes the temperature set point. A bit like this:
https://www.youtube.com/watch?v=A2AfMX1PcwU
It's the other way around though:
Hotter at low load/speed for efficiency - Think hotter oil temperatures, lower friction, hotter metal temperatures, less combustion heat losses to the cylinder walls.
At high load/speed, it drops the temperature for engine protection so it doesn't over heat and also helps mitigate against things like knock
Just seen this! Cheers - yeah that makes sense, as you can see I hadn't thought it through and all I had in my mind was it actively managed temperature! I am an actual engineer, honest. Also to do with the electric thermostat that they have which changes the temperature set point. A bit like this:
https://www.youtube.com/watch?v=A2AfMX1PcwU
It's the other way around though:
Hotter at low load/speed for efficiency - Think hotter oil temperatures, lower friction, hotter metal temperatures, less combustion heat losses to the cylinder walls.
At high load/speed, it drops the temperature for engine protection so it doesn't over heat and also helps mitigate against things like knock
Currently trying to put a list togheter of all the parts I think I'll want/need for refreshing the suspension components. It's not easy! I keep losing where I've got to and the list is getting long.
Would be so much easier to just order the repair kits from BMW, but the cost would be so much more. Control arm kit alone was £115 vs. £70 for just the arm from CP4L, albeit the kit does at least include for the fixings.
BTW, from getting very familiar with RealOEM, does anyone know what the "poor road package/official unmasked vehicle" options relate to? Presumably for Police vehicles. Just wondered how they differ from the SE or MSport components.
Would be so much easier to just order the repair kits from BMW, but the cost would be so much more. Control arm kit alone was £115 vs. £70 for just the arm from CP4L, albeit the kit does at least include for the fixings.
BTW, from getting very familiar with RealOEM, does anyone know what the "poor road package/official unmasked vehicle" options relate to? Presumably for Police vehicles. Just wondered how they differ from the SE or MSport components.
Swervin_Mervin said:
Currently trying to put a list togheter of all the parts I think I'll want/need for refreshing the suspension components. It's not easy! I keep losing where I've got to and the list is getting long.
Would be so much easier to just order the repair kits from BMW, but the cost would be so much more. Control arm kit alone was £115 vs. £70 for just the arm from CP4L, albeit the kit does at least include for the fixings.
BTW, from getting very familiar with RealOEM, does anyone know what the "poor road package/official unmasked vehicle" options relate to? Presumably for Police vehicles. Just wondered how they differ from the SE or MSport components.
Packs are available on eBay, for example - https://www.ebay.co.uk/itm/FOR-BMW-3-SERIES-E90-E9...Would be so much easier to just order the repair kits from BMW, but the cost would be so much more. Control arm kit alone was £115 vs. £70 for just the arm from CP4L, albeit the kit does at least include for the fixings.
BTW, from getting very familiar with RealOEM, does anyone know what the "poor road package/official unmasked vehicle" options relate to? Presumably for Police vehicles. Just wondered how they differ from the SE or MSport components.
Meyle parts normally pretty decent.
Ta. I've had too much trouble in the past with non-OEM control arms on this, so I'm going to stick to Lemforder for those, and then either the Sachs or Bilstein jobbies for the shocks. THen BMW for the fixings.
Part of the problem is deciding where to draw the line on what to replace! I mean do I go as far as subframe mounts etc? (no, i've decided on that!)
Part of the problem is deciding where to draw the line on what to replace! I mean do I go as far as subframe mounts etc? (no, i've decided on that!)
Swervin_Mervin said:
Ta. I've had too much trouble in the past with non-OEM control arms on this, so I'm going to stick to Lemforder for those, and then either the Sachs or Bilstein jobbies for the shocks. THen BMW for the fixings.
Part of the problem is deciding where to draw the line on what to replace! I mean do I go as far as subframe mounts etc? (no, i've decided on that!)
How old are the bits and pieces you're replacing?Part of the problem is deciding where to draw the line on what to replace! I mean do I go as far as subframe mounts etc? (no, i've decided on that!)
ATM said:
How old are the bits and pieces you're replacing?
I'd imagine most of it is original. Car's a June 06 build and now on 108k. I bought it 50k and 5yrs ago NSF had clearly had turd control arms fitted before though, and I ended up replacing both. Just replaced one again on that side to pass the MOT in December. It's not strictly necessary to do everything, but I promised myself I would last year and then never got round to it.
My understanding was that Lemforder and/or TRW were the OEM manufacturer - is this not the case?
Swervin_Mervin said:
I'd imagine most of it is original. Car's a June 06 build and now on 108k. I bought it 50k and 5yrs ago
NSF had clearly had turd control arms fitted before though, and I ended up replacing both. Just replaced one again on that side to pass the MOT in December. It's not strictly necessary to do everything, but I promised myself I would last year and then never got round to it.
My understanding was that Lemforder and/or TRW were the OEM manufacturer - is this not the case?
No idea.NSF had clearly had turd control arms fitted before though, and I ended up replacing both. Just replaced one again on that side to pass the MOT in December. It's not strictly necessary to do everything, but I promised myself I would last year and then never got round to it.
My understanding was that Lemforder and/or TRW were the OEM manufacturer - is this not the case?
What tyres are you using?
Swervin_Mervin said:
I'd imagine most of it is original. Car's a June 06 build and now on 108k. I bought it 50k and 5yrs ago
NSF had clearly had turd control arms fitted before though, and I ended up replacing both. Just replaced one again on that side to pass the MOT in December. It's not strictly necessary to do everything, but I promised myself I would last year and then never got round to it.
My understanding was that Lemforder and/or TRW were the OEM manufacturer - is this not the case?
I think you’re correct on the factory suppliers.NSF had clearly had turd control arms fitted before though, and I ended up replacing both. Just replaced one again on that side to pass the MOT in December. It's not strictly necessary to do everything, but I promised myself I would last year and then never got round to it.
My understanding was that Lemforder and/or TRW were the OEM manufacturer - is this not the case?
helix402 said:
Swervin_Mervin said:
I'd imagine most of it is original. Car's a June 06 build and now on 108k. I bought it 50k and 5yrs ago
NSF had clearly had turd control arms fitted before though, and I ended up replacing both. Just replaced one again on that side to pass the MOT in December. It's not strictly necessary to do everything, but I promised myself I would last year and then never got round to it.
My understanding was that Lemforder and/or TRW were the OEM manufacturer - is this not the case?
I think you’re correct on the factory suppliers.NSF had clearly had turd control arms fitted before though, and I ended up replacing both. Just replaced one again on that side to pass the MOT in December. It's not strictly necessary to do everything, but I promised myself I would last year and then never got round to it.
My understanding was that Lemforder and/or TRW were the OEM manufacturer - is this not the case?
Some great looking cars above so cant miss opertunity to post pics my E91 325d SE LCI,
Wanted an SE to avoid the M-sport suspension but still think the LCI can look good even in SE spec-
ty of
Good spec when I bought it but after 4 years owneship found these at a decent price on ebay
heated manual sport seats - but with mechanical tilt for all of seat and electric side bolsters.
Side bolsters not working at moment but got info on supply pins for earth and ground from existing supply to heated seat- just need to work out how to actually do the link (last time I din any electrical work on cars was on a 1960's mini. Any help appreciated bear in mind I am a complete novice, although managed seat swap ok (existing SE seats were heated)
Wanted an SE to avoid the M-sport suspension but still think the LCI can look good even in SE spec-
ty of Good spec when I bought it but after 4 years owneship found these at a decent price on ebay
heated manual sport seats - but with mechanical tilt for all of seat and electric side bolsters.
Side bolsters not working at moment but got info on supply pins for earth and ground from existing supply to heated seat- just need to work out how to actually do the link (last time I din any electrical work on cars was on a 1960's mini. Any help appreciated bear in mind I am a complete novice, although managed seat swap ok (existing SE seats were heated)
ATM said:
Cloth seats + Chrome window surrounds = odd spec.Now 13995
ATM said:
ATM said:
Cloth seats + Chrome window surrounds = odd spec.Now 13995
The shadow chrome can creak whereas the normal chrome doesn't, so maybe they chose the chrome?
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