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Messages - Marks DTM Calib

Pages: [1] 2 3 4 5 6 7 8 ... 2177
1
General Discussion Area / Re: Loft Insulation
« on: Today at 13:12:40 »
If you look at the linked image then you can see they leave a gap between the insulation and underside of the tile structure (tile, felt, battens etc) to allow air to flow.

Ahh, right, so if the rafters are 4 inch (100mm), then use 75mm thick material to leave roughly a 1 inch gap between the roofing felt and the top of the insulation?

Effectively yes, rafters are probably 6 inch and you would use 100mm insulation and a 50mm air gap.

Reality is that the moisture builds on the underside of the felt/barrier material in the roof structure and hence the airflow between this and the insulation addresses the moisture issue. You do have to ensure you do not block the air flow so if you have eaves vents you have to make for certain that the ridge area is not blocked off.

2
General Discussion Area / Re: Loft Insulation
« on: Today at 11:07:49 »
If you look at the linked image then you can see they leave a gap between the insulation and underside of the tile structure (tile, felt, battens etc) to allow air to flow.

If it was me, the flooring would be lifted, some 8x2s added on top of the existing ceiling joists, insulation between, and flooring back down (but then we do use the loft a lot for storage)

3
I don't buy that one, the systems would be full of low or high volt codes.

I expect this issue to return

4
General Car Chat / Re: AGM v not AGM
« on: Today at 07:17:53 »
There is a certain connector by the battery you unplug to disable stop start.

As for a non AGM battery, these work as a very mild hybrid so have a very high amps alternator and do not take the battery above 90% state of charge normally, it then boosts the battery voltage under braking and backs off the charge rate when cruising (and uses some battery reserve). Hence the need for AGM.

Have you given it a good charge and updated the PCM and BCM software?

5
General Car Chat / Re: My LR Reliability thread
« on: 04 August 2022, 13:37:35 »
So today, in hopefully a conclusion to this sorry tale, I put a deposit down on a newer D5 that happened to come into one of our local LR dealers over the weekend. A 68 plate facelift 3.0, Loire Blue, tan interior and just about every possible option  :y

It's an ex JLR vehicle (OE registration) and was allegedly a former VIP car - which I could believe, or it could be total tosh, either way, it's rather lovely. Slightly oddly, it's had 'downgraded' 20" wheels, which I actually prefer. It's a newer, lower mileage and a better car than the green one, but then again, it was more expensive.

The car needs its first MOT and hasn't been through their workshop for checking, but was fully serviced at the dealer about 6 weeks ago. I can't wait for it to be ready  :)

OE is rarely JLR management, OV is the usual. OE being Oxford and and OV being more specific to Upper Heyford.

Feel free to ping me the Reg or VIN and I can have a little look on the system

Pretty sure my last Jag was an ex JLR management car.

OY15 ASX. :y

Second best car I have owned. ::)

OY is the other common ex management plate.   :y

Thats changed now though, as the supply has moved to Bruntingthorpe so they are now a bit more random, although KP is pretty common

6
General Car Chat / Re: My LR Reliability thread
« on: 04 August 2022, 08:21:54 »
So today, in hopefully a conclusion to this sorry tale, I put a deposit down on a newer D5 that happened to come into one of our local LR dealers over the weekend. A 68 plate facelift 3.0, Loire Blue, tan interior and just about every possible option  :y

It's an ex JLR vehicle (OE registration) and was allegedly a former VIP car - which I could believe, or it could be total tosh, either way, it's rather lovely. Slightly oddly, it's had 'downgraded' 20" wheels, which I actually prefer. It's a newer, lower mileage and a better car than the green one, but then again, it was more expensive.

The car needs its first MOT and hasn't been through their workshop for checking, but was fully serviced at the dealer about 6 weeks ago. I can't wait for it to be ready  :)

OE is rarely JLR management, OV is the usual. OE being Oxford and and OV being more specific to Upper Heyford.

Feel free to ping me the Reg or VIN and I can have a little look on the system

7
General Car Chat / Re: My LR Reliability thread
« on: 04 August 2022, 08:19:39 »
Get a Landcruiser, you know how the saying goes, if you want to go into the desert take a Landrover, if you want to come back take a Landcruiser  ::) :o :o

The issue is they are not nice to drive, classic issue with a ladder chassis, crap on the road and awful at stopping the transfer of NVH  :y

8
General Car Chat / Re: Astra J - Weird electric behaviour
« on: 01 August 2022, 07:19:44 »
Grounding issue then

9
Omega General Help / Re: 2.2 HBV vacuum feed
« on: 29 July 2022, 12:05:47 »
They connect to the rubber unit where the heater pipes are as per:
The connection on the left is the vac feed to the cabin, and the one on the right the connection to the HBV

10
General Car Chat / Re: Astra J - Weird electric behaviour
« on: 28 July 2022, 16:33:21 »
I thought all car manufacturers do extreme climate tests on cars, and mostly use the same components on the cars, no matter what the market.

And it wasn't that hot really.  Hot for the UK, but 45C isn't unheard of in the Med, and the Astra is a fairly common car there...

Temperatures in the IP area can hit 75 degC in the middle east midday sun, just under the roof its 85degC so not, what we had is not hot at all.

I expect the Intrument panel might be loose in its fixed connector, or a wire has rubber through and shorting out.

11
General Car Chat / Re: Astra J - Weird electric behaviour
« on: 27 July 2022, 16:02:22 »
It won't be engine ecu, it might be instruments, but I expect you to seer this happen again at some point

Engine bay temps vary very little between hot and warm days (for the obvious reasons) for info, as the primary heat source is at a controlled temperature and much hotter than even the higest ambient temperatures

12
General Car Chat / Re: Astra J - Weird electric behaviour
« on: 26 July 2022, 13:29:23 »
Been very quiet on car front and no real issues with Astra 2012 since I got it 7.5 years ago.  But on the very hot day last week instruments went haywire, codes could not be read as no communication with AA equipment. Abs and gearbox fault lights on. Taken to main dealer who having left it a few days as they were fully booked saying today car is driving normally and they can read codes and no faults showing. Battery tested,  alternator charging ok etc. They will test again tomorrow. Weird - told them to test on uphill as the problem seemed to happen when load placed on engine and transmission

Did it happen whilst stood or whilst driving?

13
General Car Chat / Re: My LR Reliability thread
« on: 26 July 2022, 07:55:41 »
Standard Ford Duratorq engine, underboost and NOx are clues, I would be checking for a stuck EGR valve in need of a clean and a clean of the boost pressure sensor, then a quick check for split pipes

I am more concerned that this garage is not even thinking about the symptoms and codes, they are just sending it off for a third party guess

14
General Car Chat / Re: What's everyone driving these days?
« on: 25 July 2022, 08:06:30 »
Daily driver is a Range Rover Sport 3.0 diesel, wifey has an iPace, son an Evoque and there is a V6 F-type for the toy

15
General Car Chat / Re: Rent a heated seat for your beemer
« on: 19 July 2022, 15:47:07 »
Bit more fundamental than that, the cars have what is called a digital twin, so the config is onboard and offboard. This can get aligned over the air at anytime so just avoiding a dealer won't work, you also need to ditch the connectivity
Which presumably bricks the car.
Well I would imagine it will be done through BMW connected which no-one apart from the first owner for the first year ever bothers with. When you pair a handset with the car you have to enable data services for connected to make the data connection for it's online services, on most vehicles that's a tick box menu option (certainly on the NBT iDrive version in my car which has the latest software on it - required to run 2021-1 and above maps). I don't think 'bricking' the car would be allowed in this country for a multitude of safety reasons especially when, as previously stated, disabling a car is not allowed.

Latest BMWs are permanently connected, independent of the BMW connected bit, via the inbuilt TCU (usually attached to the base of the sharkfin on BMWs). So there is effectively a car and customer connection capability.

Interestingly if you nobble connectivity on a Tesla, it absolutely will not do anything, similarly if you bugger with certain modules (ask our grads who tore one down  ;D)

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