E91 Straight Six Bearding
Discussion
Gad-Westy said:
Does anyone use cross climate tyres on a 335i? I previously used them on our 525i and I’m a huge fan but I’m a bit worried about how well they’ll deal with the turbo delivery? Not cheap in standard sizes so don’t want to get this wrong. Maybe better just to buy a set of winters?
On a related subject, what do you all do, if anything, about a spare wheel?
FWIW I ran Goodyear Vector 4 Season Gen 3s on my previous Japanese import E39 540i and as good a tyre as they were; I wouldn't have run them through the next year's warmer months...On a related subject, what do you all do, if anything, about a spare wheel?
They were on the car when we did c400miles around North Wales which was a good shakedown for the car after all the work I did...
They were comfy, quiet and grippy... But they were soft too and I know in comparison to the same sized PS4s I ran on my previous Japanese import E39 touring; that the all-seasons will have been spot on for over winter, but i'd be changing them come the warmer Spring & Summer months
I'll always prefer to run dedicated winters & summers
Gad-Westy said:
I just really dislike run flats which I admit is a bit of a problem on a car with no spare but I think I'd rather carry the spare than put up with the run flats.
Good point about needing space for the other wheel to go in as well. If I end up with a set of winters, maybe I'll just use one of those as the spare and a summer tyre in winter.
How does the TPMS system on a pre-LCI E91 work? Will I need winters with TPMS valves or is it done off the ABS?
Either system is available on the E9x, but most use the ABS based system (officially known as Flat Tyre Monitor as it doesn't actually read pressures). While TPMS is more useful, it's also more prone to failure and needs sensors in every wheel (Inc any spare or winter tyres) so many users code it out and revert to FTM. Good point about needing space for the other wheel to go in as well. If I end up with a set of winters, maybe I'll just use one of those as the spare and a summer tyre in winter.
How does the TPMS system on a pre-LCI E91 work? Will I need winters with TPMS valves or is it done off the ABS?
pmorg4 said:
Gad-Westy said:
I just really dislike run flats which I admit is a bit of a problem on a car with no spare but I think I'd rather carry the spare than put up with the run flats.
Good point about needing space for the other wheel to go in as well. If I end up with a set of winters, maybe I'll just use one of those as the spare and a summer tyre in winter.
How does the TPMS system on a pre-LCI E91 work? Will I need winters with TPMS valves or is it done off the ABS?
Either system is available on the E9x, but most use the ABS based system (officially known as Flat Tyre Monitor as it doesn't actually read pressures). While TPMS is more useful, it's also more prone to failure and needs sensors in every wheel (Inc any spare or winter tyres) so many users code it out and revert to FTM. Good point about needing space for the other wheel to go in as well. If I end up with a set of winters, maybe I'll just use one of those as the spare and a summer tyre in winter.
How does the TPMS system on a pre-LCI E91 work? Will I need winters with TPMS valves or is it done off the ABS?
ATM said:
pmorg4 said:
Gad-Westy said:
I just really dislike run flats which I admit is a bit of a problem on a car with no spare but I think I'd rather carry the spare than put up with the run flats.
Good point about needing space for the other wheel to go in as well. If I end up with a set of winters, maybe I'll just use one of those as the spare and a summer tyre in winter.
How does the TPMS system on a pre-LCI E91 work? Will I need winters with TPMS valves or is it done off the ABS?
Either system is available on the E9x, but most use the ABS based system (officially known as Flat Tyre Monitor as it doesn't actually read pressures). While TPMS is more useful, it's also more prone to failure and needs sensors in every wheel (Inc any spare or winter tyres) so many users code it out and revert to FTM. Good point about needing space for the other wheel to go in as well. If I end up with a set of winters, maybe I'll just use one of those as the spare and a summer tyre in winter.
How does the TPMS system on a pre-LCI E91 work? Will I need winters with TPMS valves or is it done off the ABS?
pmorg4 said:
Yes exactly that, it’s comparing relative speeds and also the change in those speeds, so it can detect when a tyre starts to lose pressure well before it goes flat. BMW calls it FTM to distinguish it from TPMS which actually measures the pressure in each tyre.
I've ran my e61 with different sized tyres front to back - so different circumferences. And it still works fine. You reset the system in the idrive and then it remembers the setup. As you drive if it sees one wheel spinning more then it guesses this has gone down slightly and warns you. That's it.Fitted an ALL climate panel to my LCI (but pre-ALL which came in a bit later) E91. Another area where BMW cheapened the later models is the finish on the climate panel. The later revision with the ALL button wears much quicker than earlier models as the icons are basically printed on the surface rather than embedded in the plastic - have a look on eBay and all the later ones show signs of wear whereas the earlier ones generally don't. So I decided to keep my earlier face plate and just swap over the ALL button (note that you need the newer version of the electronics so you can't just code a REST panel to have the ALL functionality).
There was a snag - clearly another cost saving measure where the older panel has a little fan to draw in air against the temperature sensor, whereas the later version removed the fan and the sensor was relocated closer to the front of the panel to compensate. As a result I had to do some tweaking to get the older face plate to fit, but I got there.
There was a snag - clearly another cost saving measure where the older panel has a little fan to draw in air against the temperature sensor, whereas the later version removed the fan and the sensor was relocated closer to the front of the panel to compensate. As a result I had to do some tweaking to get the older face plate to fit, but I got there.
Ah good to see you did it!
I’ve got a question - for those of us with an auto box, since my gearbox issues my car now changes gear better than ever but it feels like when your sat in D in traffic it almost comes off the bite as such until you take your foot off the brake and then it starts to creep. If your stop start it doesn’t - only if you let it sit for 5 seconds.
If I go from D to N without waiting for the pressure to drop it’s a bit harsher. Is this normal?
I’ve got a question - for those of us with an auto box, since my gearbox issues my car now changes gear better than ever but it feels like when your sat in D in traffic it almost comes off the bite as such until you take your foot off the brake and then it starts to creep. If your stop start it doesn’t - only if you let it sit for 5 seconds.
If I go from D to N without waiting for the pressure to drop it’s a bit harsher. Is this normal?
JakeT said:
These cars have something called NIC, neutral idle control. It will slip out of gear at the lights to save fuel.
I've read about that but didn't think it was programmed in to the E9x gearboxes. Personally I'd prefer if it did that, I'm not a fan of the "creep" feature of torque convertors so a feature that allows it to properly idle without constantly fighting the brake is a good thing.I'm aware you can put the gearbox into neutral to get the same effect, but there are varying views on whether that should be done routinely.
helix402 said:
Swervin_Mervin said:
I'm sure it must have it - if you sit there for more than 5s you can feel the resistance drop, and the revs drop. Lift off and there's a slight delay before it creeps. Hence I'm sure it must have NIC.
I don’t think the ZF6 does have it.I'm pretty sure mine doesn't have it as I can sit at traffic lights for several minutes and it's constantly fighting against the brake. Likewise if I apply the handbrake I have to really pull it up to stop the car moving forward. Leaving it in 2nd gear using the paddles makes the effect less pronounced, purely due to the gearing effect meaning that the torque multiplication to the rear wheels is lowered.
I wonder if different software versions have enabled or disabled this feature, or if it was limited to certain engines. I would be more than happy if I could enable it on mine, but despite searching in the past I've found very little information on this with regard to the E-series cars.
From the ZF 6HP second generation brochure:
"Moreover, the Neutral Idle Control (NIC) - which decouples the engine from the driveline once the vehicle is standing still - complements the performance portfolio and spares the driver from additional unnecessary, vibrations."
I'm not sure when the E9x range got the 2nd gen 6HP but it was certainly fitted to later models including my LCI 335i.
"Moreover, the Neutral Idle Control (NIC) - which decouples the engine from the driveline once the vehicle is standing still - complements the performance portfolio and spares the driver from additional unnecessary, vibrations."
I'm not sure when the E9x range got the 2nd gen 6HP but it was certainly fitted to later models including my LCI 335i.
I’ve only seen NIC mentioned where people want to turn it off. I’ve driven a 630i which definitely had it. I say because on a slight hill, before the hill holder would kick in, it would roll back a little.
What years and models have it, I really don’t know however. I do like the creep of an automatic though, good for parking and slow speed traffic.
What years and models have it, I really don’t know however. I do like the creep of an automatic though, good for parking and slow speed traffic.
pmorg4 said:
From the ZF 6HP second generation brochure:
"Moreover, the Neutral Idle Control (NIC) - which decouples the engine from the driveline once the vehicle is standing still - complements the performance portfolio and spares the driver from additional unnecessary, vibrations."
I'm not sure when the E9x range got the 2nd gen 6HP but it was certainly fitted to later models including my LCI 335i.
Interesting, it doesn’t feel like my 335d has it."Moreover, the Neutral Idle Control (NIC) - which decouples the engine from the driveline once the vehicle is standing still - complements the performance portfolio and spares the driver from additional unnecessary, vibrations."
I'm not sure when the E9x range got the 2nd gen 6HP but it was certainly fitted to later models including my LCI 335i.
I wouldn’t say it noticeably lurches.
I believe mine definitely has NIC turned on but I’ll check tomorrow when I can be bothered to get the laptop out. Tbh the operation isn’t intrusive, my work 308 diesel does exactly the same thing so I’m used to a bit of a delay just wasn’t sure if it was normal.
I believe mine definitely has NIC turned on but I’ll check tomorrow when I can be bothered to get the laptop out. Tbh the operation isn’t intrusive, my work 308 diesel does exactly the same thing so I’m used to a bit of a delay just wasn’t sure if it was normal.
I can now post on the E91 thread about an actual 6 cylinder E91! 
I collected the wife’s new 330i this afternoon. It’s a bit of a 12 footer at the moment; it needs a bloody good polish and a bit of paint.
The most disappointing thing is that the A/C is really weak on a hot day. It’s booked in for a regard tomorrow to see if that sorts it.
I collected the wife’s new 330i this afternoon. It’s a bit of a 12 footer at the moment; it needs a bloody good polish and a bit of paint.
The most disappointing thing is that the A/C is really weak on a hot day. It’s booked in for a regard tomorrow to see if that sorts it.
Court_S said:
I can now post on the E91 thread about an actual 6 cylinder E91!
I collected the wife’s new 330i this afternoon. It’s a bit of a 12 footer at the moment; it needs a bloody good polish and a bit of paint.
The most disappointing thing is that the A/C is really weak on a hot day. It’s booked in for a regard tomorrow to see if that sorts it.
This looks fantastic Court S. Great colour combo. And the wheels really suit it too. Hope the AC is an easy fix. I collected the wife’s new 330i this afternoon. It’s a bit of a 12 footer at the moment; it needs a bloody good polish and a bit of paint.
The most disappointing thing is that the A/C is really weak on a hot day. It’s booked in for a regard tomorrow to see if that sorts it.
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