Welcome to Xdrivers
Please login or register.

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Chrispy

Pages: [1] 2 3 4 5
1
General X5 Forum (E70) / Re: A star tyres , myth or fact
« on: Yesterday at 02:13:31 PM »
Re this, (and this is my thought processes out loud)......I'm sure it was mentioned earlier in the thread, if * marked batches are compared to ensure RR consistency across a staggered setup.  So, for us we know that on a 19" setup (using mine as an example with diddy 223 peasant wheels :) ) it would be a 255/50/19 front and a 285/45/19 rear. 

So, do they compare every 255/50/19 to every 285/45/19 to ensure the same RR?  Or do they sample the odd one from a batch?  And how many other variations are there?

Or are we simply saying that every 255/50/19 has to conform to a much more stringent QA process to ensure adherence to a specific RR (and weight), and the same for every 285/45/19?  This would make more sense, although how much closer these tyres would be to pre-defined sizes than other "premium" brand non * marked tyres is debatable considering manufacturing methods would be the same or very similar across the board.  Either that or they are they subject to the "shaving" process afterwards to ensure their size if they're a tad on the big side. Not sure how they'd handle ones that are too small though, and if they are "shaved" how much tread is lost?  Or they're simply rejected if they don't stack up, meaning potentially a lot of waste which makes bad business sense.  Otherwise the tooling for * marked would need to be fairly different to non * marked, perhaps warranting a completely different production line?

Simply enforcing tighter QA processes for * marked vs non * marked seems the most plausible to me considering Bridgestone make lots of tyres for all sorts of different applications, and produce the * Dueller HP's running on mine at the moment and also non * marked equivalents too.  So only the best will cockadoodle doo?

I doubt we'll ever know and much of this is conjecture, with anecdotal evidence on both sides, however I do have a few thoughts:

1. The car comes as standard with run flats, and you can drive at say 50mph roughly with a flat for X amount of miles to get it replaced.  As such the RR on that tyre will be substantially lower than all other tyres at that point, and it will have been lower for a period anyway for the TPS (ABS based) to have picked it up.  Does this cause an issue with the transfer case?  I for example had a screw in my tyre at the weekend, causing a slow puncture and my TPS came on.  Quick top up and I was on my way again (got it repaired the day after) but at no point before the TPS came on did I suspect there was anything wrong prior to this (whining diff etc)

2. The aforementioned natural differences in RR front to back due to wear and possible pressure variations (I've read it quite a bit that the rears wear faster than the fronts).  My E91 used to chew through rears at almost twice the rate of the fronts, possibly due to enthusiastic driving and the fact it was pure RWD, no torque split.....would these exceed or match the differences as a result of manufacturing / poor QA across tyre batches?

2
General X5 Forum (E70) / Re: Non Run Flat but * rated
« on: April 16, 2018, 04:06:22 PM »
I went through this exercise on here.  There aren't any is the short answer which have the load rating for the 7 seater.

The closest I can find after a recommendation is a Hankook Ventus on a staggered setup.

https://www.tyreleader.co.uk/car-tyres/hankook/ventus-s1-evo2-k117a/285-45-zr19-111w-824936 https://www.tyreleader.co.uk/car-tyres/hankook/ventus-s1-evo2-k117a/255-50-zr19-107y-738902

I too am looking to do this when my Duellers wear out as concrete tyres with zero sidewall give are not conducive to a decent ride, and yes I am aware it has sports suspension and so will inevitably be "firm" and jiggly.  Many run non * marked tyres over winter and have no problems.

3
General X5 Forum (E70) / Re: Electronic Parking Brake Stuck
« on: April 09, 2018, 11:48:56 AM »
Prior to mine failing big time, thus requiring complicated recovery (hard to tow a car with the parking brake locked on - needed skates), it was making a grinding noise now and then when the parking brake came on.  So when you first pull the button, with the engine running etc, it applies the rear calipers using the normal brake system (hydraulics via servo) but then when you open the door to get out, or turn the ignition off that's when the actuator kicks in and pulls the cables to apply the mini drum brake setup. 

I was there checking door hinges and all sorts thinking the grinding noise was those as it always happened whilst the engine was running and I opened the door to get out.  Little did I know this was the actuator under the car on its last legs.  Then when it imploded (6pm on a Sunday evening in a Malton car park, 40 miles from home), it was that same noise x1000, with extra squealing thrown in for good measure.

With regards to the adjustment - are we talking the same as with smaller cars?  My E91 had like a little toothed ring that you turned with a flatty screwdriver with the rear wheel off in order to adjust the parking brake on that side.  Other than that, there was no other adjustment you could make.... 

4
General X5 Forum (E70) / Re: Electronic Parking Brake Stuck
« on: April 09, 2018, 09:28:40 AM »
Thanks to all for contributions. This is still ongoing- I managed to find an eBay seller who reconditions for £200 (you send them your unit). This has already risen to £290 as cables needed replacing PLUS I am now awaiting a call from them as apparently it still does not work so they may have to fit more parts (it's been there a week on a so called 24hr turnaround). All in all a bit of a mare.

The car is my wife's and is actually our 3rd car so really not keen for this to happen again. How do I 'not use' the parking break as I assumed it just comes on automatically? Car is an auto so doesn't really need the brake anyway one would think. I certainly never use on my F30 3 series which has a hand parking brake (which is worse than useless anyway). Plus I live in Cambs so no exactly hilly around here!
Just put the transmission in park and it'll lock up stopping the car from moving. It does allow a smidgen of movement if you're on a slope etc (so be careful if you're really close to say a car in front or something) but loads of people I know with these kinds of autos (BMW owners with the 8 speeder) just do that. They never use the parking brake anyway and that's not even trying to avoid breaking it.

Sent from my SM-G930F using Tapatalk


5
General X5 Forum (E70) / Re: Electronic Parking Brake Stuck
« on: April 07, 2018, 08:19:01 PM »
I just changed my parking brake switch, no coding required
You don't need to code for the switch but you do for the actuator unit under the car that applies the parking brake.

Sent from my SM-G930F using Tapatalk


6
I got this one:

https://www.ebay.co.uk/itm/FOR-5-SERIES-3-0-525-530-535-X5-X6-2009-GLOW-PLUG-RELAY-CONTROL-MODULE-UNIT/192210351800?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

But it's worth going to RealOEM, putting in your VIN number and getting the part number for the one you need first which is what I did to ensure I got the right one.  Nothing worse than getting the intake manifold off to find you have the wrong one......

Do you have a fault code logged for yours and/ or is it lumpy on cold starts?  Should be as smooth as silk at all times (mine is now).

7
Got the glow plug control module replaced the other day and thought I'd post up a few observations / thoughts re this as it may be valuable to others.

Ever since I got the car, it was never happy on cold starts.  Even on "normal" temp starts it was never as smooth as I'd like and the car was waaaaay more thirsty than I'd have liked when cold. 

So when the car was in BMW for the cripplingly overpriced parking brake module replacement they spotted a fault code with the glow plug control module and wanted £350 to replace it.  Pfft I thought after I'd just given them my left kidney for the parking brake, so I got it sorted myself.  Found the part code on RealOEM and ordered a replacement Beru unit from eBay for £80, which arrived promptly.
Then booked the car in with my local independent to have it fitted after the wife insisted I wouldn't have time to do it myself.....

Upon removal of the engine cover and scuttle tray etc they found additional coolant pipes in the way of the control module that they weren't expecting.  We're talking narrow ones about 8mm in diameter and they said they'd not seen this on the many 3.0d's they'd handled prior.  As such the intake plenum needed to come off too in order to get in, rather than using alien fingers like normal.  Anyway, all good after all this was sorted and I went to collect the car.

First thing I noted was the car did a regen.  But we're talking a serious regen here - white/ grey haze from the exhaust under acceleration visible in the rear view mirror (which stopped about a mile later and hasn't happened since), and bonkers heat on the tailpipes with the exhaust clanking from the heat when I got home and turned the ignition off.  It's never done that before. 

Now all cold starts are met with a proper "vrooom" when the engine starts, and instant smooth running, whereas before it would sort of cough into life and feel a bit lumpy, almost misfiring when in minus temps.  The engine is also smoother to drive before reaching normal operating temps and I dare say has improved mpg - you can actually see there is less throttle needed to maintain cruising speed on the motorway than before.  Hoping this isn't my imagination but I'd say this has taken me from late 20's into early 30's mpg wise.  I need to brim it to really do the math.

How much of this improved running is down to active glow plugs at the right times vs a proper regen taking place I'm not sure, but it's made it all much better.

So the question is, clearly the glow plug controller is involved in the regen process and heavily by the looks of this.  This clearly wasn't working with a faulty module, so:

1. How long would a faulty glow plug controller need to be in place for it to kill your DPF?
2. If the 2 are so closely linked, then getting these things checked and replaced should be high on many peoples agendas, yes?

Thoughts and comments welcome. :)

Chris.

8
I did mine.  Dead easy to replace, just be careful when pulling the chrome trim from around the iDrive/ gear lever/ parking brake unit.  I got some proper trim removal tools from eBay (about £3) to do it, and they needed some force to release the clips near the arm rest.

9
General X5 Forum (E70) / Re: Electronic Parking Brake Stuck
« on: March 26, 2018, 10:03:17 AM »
I had this a few weeks ago and had to have a new one fitted at the dealer (the new unit needs coding apparently so the local independent couldn't do it).  Recovery truck had to use skates to move the car as the parking brake was locked on and the release cable in the boot wouldn't budge it.  The unit under the car had chewed up its gears so wouldn't let go - went with a right old squeal when it failed :(

Very common problem and it has been noted that even replacements are failing after 18 months or so.  The recommendation is to not use the parking brake. 

Note that "applying" the parking brake when the engine is running etc coming to a halt, and before you open the drivers door or turn off the ignition uses the calipers to hold the car in place.  It's only when you turn the engine off or open the drivers door that it uses the unit under the car to pull on the bowden cables and engage the little drum brakes for the parking brake in the rear wheels.  You can hear it doing it.

Mine was about £1300 all in at the BMW dealer.......I nearly had a heart attack.  :(
The part alone was £800 and it took them a while to do it as everything was stuck on.

Not sure if having more tooling like a crow bar or a claw hammer and some wood would have helped the release cable in the boot operate as I had no leverage when mine went.  Just a screwdriver through the loop and me pulling up deadlift style, trying to make it let go.  Nowhere near enough force.  There is also a fuse you can pull in the boot fuse box to "reset" the braking control unit and mine almost let go when I did this (pulled the fuse, plugged back in, started the car) but wasn't quite enough.


10
General X5 Forum (E70) / Re: 19" Star rated non-RFT's on Black Circles
« on: February 24, 2018, 02:38:57 PM »
Yes. Just had a look on Tyreleader and they are quoting 164 euros rear and 139 euros front. Ive always used Hankook's on my E53's and never once had an issue.
Awesome I'll look into those. Thanks very much for the tip. :)

Sent from my SM-G930F using Tapatalk


11
General X5 Forum (E70) / Re: 19" Star rated non-RFT's on Black Circles
« on: February 24, 2018, 09:37:02 AM »
Was talking this subject through with my local tyre distributor yesterday. He highly reccommends the Hankook Ventus Evo 2 K117A
which has ZR , XL , 111W and rim protector . He's on his 3rd set on his E70.
Non RFT?....

Sent from my SM-G930F using Tapatalk


12
General X5 Forum (E70) / Re: 19" Star rated non-RFT's on Black Circles
« on: February 22, 2018, 08:57:20 PM »
Hi Chrispy,

About 3 years ago, before the non-runflat* rated makes became available, I could only source some winter tyres that were not star rated and not runflats (non available at the time).  They're Vredestein Winter Extreme in the right size for front and back, and with 107V and 111V ratings. Insurance  Ok as long as size, weight and speed ratings are correct.  I carry a couple of cans of Tyreweld and a battery operated pump just in case (and I understand a lot of cars have this as they don't have a spare to save weight).  This is the 4th winter with them on, and touch wood!!!

Graeme
Hi Graeme

So in order to get the load rating, and go non RFT ultimately you went non star marked too?

This is the thing - finding the nirvana of tyres that are star marked, the correct load rating and aren't made of spleen liquidising  concrete.... :)

Are you still on non star marked right now?

Many on here have warned me against going non star marked due to the transfer box risk, but then I'm into load rating issues (and therefore insurance). Arrgh why is nothing straightforward lol.

Chris.

Sent from my SM-G930F using Tapatalk


13
General X5 Forum (E70) / Re: 19" Star rated non-RFT's on Black Circles
« on: February 22, 2018, 04:55:27 PM »
Hi again,

...and I forgot to mention the speed rating.  Tyres for mine are rated at V- some * marked non-runflats with the higher weight ratings have lower speed ratings such as H.  Can I suggest checking that all the data for tyre size, weight and speed ratings for new ones match the original spec!

Graeme
:) the ones I've found are 103 and 107 (W and V rated respectively) so definitely a lower rating for load but not speed.

Sent from my SM-G930F using Tapatalk


14
General X5 Forum (E70) / Re: 19" Star rated non-RFT's on Black Circles
« on: February 22, 2018, 04:52:33 PM »
Hi Chrispy,

Please can I caution you to be careful over the weight ratings on the tyres you are looking at.  Seven seaters and those with increased towing capacity may have a higher rating than 5 seaters.  Check the details of the original tyres  using the VIN number/OEM to list all the equipment fitted when new.  As I said earlier, the weight ratings for mine on 19" wheels are 107 on the front and 111 on the rears and I cannot find non-runflat * rated tyres with this figure - they are all lower.  Even though some non-flats are * rated, you really should get tyres with the specified weight rating as well. Some insurance companies are very careful to check in the event of a claim and quite readily will decline to payout if something is amiss!

Graeme
Hi Graeme,

I've just done a bit of a Google re this and seen a few comments about how insurers behave - basically they do seem to check in the event of a payout. It's never something I've considered before (it's only ever been size and speed rating) but then this is my first 7 seater, 2.1 tonne car....

Tempted to give my insurer a call and ask what their policy is and if some kind of note needs to be made on my policy re this as what others on t'interweb have stated.

Also makes me wonder if it's the fact that they are RFT that gives them the load rating they have?...

Chris.

Sent from my SM-G930F using Tapatalk


15
General X5 Forum (E70) / Re: 19" Star rated non-RFT's on Black Circles
« on: February 22, 2018, 04:43:28 PM »
Set of 4 for £645, plus fitting (free delivery) at wherever I take them from Tyre Leader. Not bad really.

Thanks for the info.

Sent from my SM-G930F using Tapatalk


Pages: [1] 2 3 4 5