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Hi Jon Sounds right to me. If the starter is drawing current and fails to start in the normal time, repeated attempts will drop the battery voltage to a point where the computers start hallucinating 🙂 Hope you get it sorted. Johnn

Ale

Had a chat with the technicians at work, consensus is a faulty starter motor. Suggestion is that the failure to turn over properly is what's triggering the fault codes for both sensors.

Beer

Hi Dominic, good that you think your imagination is playing a part in your issues, but keep an eye on it. It could be something as simple as a slight air leak on the inlet side, which seals up when the engine warms up. A smoke test might reveal a culprit, but remember to do it with a cold engine. N6 JMX

I'm beginning to think I imagined this. I think it was more to do with the road surface !! I have tried to monitor any difference or irregular "heartbeat" - pretty sure all is good. Age doesnt come alone......apparently. It had a full service in January and a new servo - which was prior affecting the changing of the gears due to the brake lights coming on. That was perfectly resolved, with a new servo.

Thank you very much for the referral to the Jaguar Daimler Heritage Trust. I'm going to look into that today.

Hi Tim, beautiful looking machine. The first port of call for any history research should be the Jaguar Daimler Heritage Trust (JDHT), who hold all of the original build records for all Jaguar, including SS, cars since 1931. One can apply for a heritage certificate for your vehicle and you can see more by following the safe link below: Jaguar Daimler Heritage Trust N6 JMX

Ginger

😂

Hi All, My father in law has a 1939 (he believes) Jaguar SS100 which I was hoping to get some additional information on. He is located in the United States, and he believes he is only the second owner of the vehicle (purchased from a gentleman in Monaco in the 1990s). We are just beginning to research the history of the vehicle as he is considering listing it for sale soon, and would like to know as much as possible. If anyone has any history they can share, it would be tremendously appreciated. Thank you for your time! Vehicle details: Hunter Green 1939 (he believes, though there is some contradictory thinking it may be a '37) SS100, right hand drive. 3.5 liter engine Vehicle serial: 39096 Engine Serial: M1073E (serial matching on engine, to plate on car chassis) Body no: 5023

Thank you !

Hi Jon http://www.jagrepair.com/images/AutoRepairPhotos/CarPDFFiles/SType/S-Type 2002.5-2008-FSM-Workshop.pdf You will find lots of useful stuff on the jagrepair.com site. Good Luck

Thank you, I am beginning to suspect the starter motor might be the culprit. I found the 'engine earth strap', unfortunately not quite what I was expecting. It seems to be just a single wire that appears out of the rest of the loom, only around four inches of cable with an eyelet on the end, bolted to the front of drivers side cylinder head. Pain in the neck to get to it properly but using my inspection camera and following the wire to the bolt, everything feels okay, no exposed wire that I can see, bolt seems tight. I would like to inspect the + and - cables going to the starter motor as well, but can't get the car high enough in the air by the roadside to remove the undertray. Looks like taking it in to work and putting it on a ramp might be the best option. No idea where the starter motor even is ! Presumably where the gearbox meets the block ? Did wonder whether the starter motor could be sticking or not engaging properly (solenoid issues ?) If it's the same age and mileage as the car, (2006 and 176,000 miles !), it might be due for a replacement ?

Tally-Ho

Thanks, everybody, for your input. Battery was checked, tested and replaced a couple of years ago - sounds like it's time to check it again! Goes into garage tomorrow - watch this space.

Hi Jon If turning the key results in nothing, a click or a start that sounds like the problem is the starter. I assume that you are not getting the engine to even turn over when it "fails to start". If the starter is actually turning the engine over at normal speed (every time you attempt to start) then you can rule it out as the problem. If not that is where I'd start. I would try to check the voltage reaching the starter when you turn the key either with a voltmeter or a test bulb. Regards John

Hi Peter, I believe there is a time out element to the smart key where if it does not have power from the fob battery for a certain period it loses it's programme and that may well have happened to you during the swap over. I believe the programming of the keys for the Modern XK (X150) has to be undertaken by a dealer and of course you need to provide proof positive that you are the owner of the vehicle for which you are trying to reprogram the keys. N6 JMX

Hi James, I would not be too quick to dismiss the dealer as to the extent of the requirements. Many manufacturers took many steps to reduce costs / expand profitability, and not installing parts / capability that wasn't being paid for by the first customer were not installed. In addition to the wiring harness, there would be switch pack amendments, software update and of course the all important motors to fold the mirrors - it's a lot of parts. That said, are you positive your XF does not have folding mirrors, just not switched on? In some vehicles, there is a tab in the vehicle settings menu to make mirrors fold automatically on locking, on others there is a requirement to hold the lock button on the fob for several seconds to make the mirrors fold. And, on some, the mirrors are folded by pressing both adjustment buttons on the door armrest at the same time. Have you experimented? N6 JMX

Just tried swapping over the starter motor relay in the fusebox under the bonnet (R20 if the online diagrams for a 2006 model are correct) Exchanged it for the identical relay for the headlamp power wash (using the theory that this relay will not have performed as many switching operations) Still took 5 attempts to start. As an experiment, switched off immediately, removed the key, locked the car and it restarted first turn, repeated this a few times. This suggests that my theory that the issue might be temperature related is incorrect (only previously tried restarts when the car has warmed up)

I am looking for the above windscreen........

Looking for a front windscreen heated with no rain sensors, dealers confirmed that was obsolete! is there any one who can shad some light, *Also looking for a spare remote fob please? Much appreciate Nicholas

I am experiencing an unusual problem with my 2006 S-TYPE R. and hoping for some input or suggestions. It has recently started having issues starting from cold. I will try to provide as much info as possible, apologies for the long post: When turning the key, sometimes nothing happens, sometimes there is a mechanical 'clunk', sometimes it tries to turn over and occasionally, it starts. Repeated attempts eventually get it to start, when it eventually does, it just starts as normal as soon as I turn the key, rather than turning over for ages. Sometimes after it starts, it seems to run 'lumpy' for a while, other times it is as smooth as usual. Battery is brand new and charged, I replaced the battery negative cable as a precaution, as the terminal clamp had 'cracked' (the fault was there prior to replacing the cable, doesn't seem to have made things better or worse) The flap on the ignition barrel isn't sticking open, when I insert the key, the seat and steering wheel move to the memorised position. The dashboard lights come on when I turn the key to the appropriate position. Reading the fault codes after trying to start it reveal P0340 and P0345, which are camshaft position sensors for bank 1 and bank 2 (or wiring ?) It has been suggested that it is very unlikely that both sensors have failed at the same time, more likely to be a common issue affecting both banks (possibly poor earth / grounding ?) Once it has warmed up, it will repeatedly start on the first turn of the key. A friend suggested connect a jump lead from a metal point on the engine to a good earth, to see if the engine earth strap was loose. Thought that this had identified the issue when I tried it yesterday, as it subsequently started at least six times in a row (removed the key, locked the car, unlocked it, key in ignition, started first time) It appears as though this wasn't the case, was only starting because I had already had it running, so must have warmed up enough. Left it overnight, tried to start this morning and it didn't even try to turn over, immediately tried the jump lead trick but still wouldn't start (unless of course I wasn't getting a good connection at one end ?) I think that at one point I have also seen a 'coolant temperature sensor' fault code, but it seems to warm up as normal, doesn't overheat or loose water. So, poor earth, sticking starter motor or relay, faulty coolant sensor, ley lines, car parked on ancient native American burial ground, or none of the above ?

Chase

Hello all... Brand new to the forum..I am the proud owner of a 2012 XF 5.0, a 2011 Lr2 3.6 and a 2018 Discovery Sport 2.0 Turbo gas....All cars have treated me very well but I am currently in the market for a new economical coder reader that that will support all three vehicles well. It will spend most of it life in the trunk as the kids drive the Disco Sport and the LR2...and I have to go to them for maintenance....Any suggestions? Thanks Mike