If you go too long between dealer services, or your dealer forgets to reset the counter, your car will come up with a yellow warning light and a message "Service due xxxx" (xxxx being the miles) when you turn on the ignition. As is well documented, there's a sequence of holding the trip computer reset and trip display selection buttons while turning the engine on to reset the counter.
It didn't work for me, and maybe that's why the dealer hadn't done it last service. Anyway, I noticed that I had switched off the car with the Satnav display showing. When I switched it back on again, it asked the question about safe use, and I wondered if this was voiding the sequence of button presses. So I selected the main menu instead of Navigation, and switched off the ignition. Then I tried the reset process again, and this time the car displayed the correct Resetting and then Reset messages.
1991 XJS V12 "facelift"
2008 XJ TDVi
Could you please perhaps explain what normal sequence has to occur to reset the service interval function?
Have to admit I`ve personally never carried out a reset....I didn`t even know there was one....but I like many only read the Owners Manual when something goes wrong!
Switch the ignition ON - that's two steps round, so that the next step would actually start the engine. But don't start the engine. Note that, as above, if you have SatNav built in, and it was selected when you turned the engine off last time, I found it comes up with a question which blocks the reset sequence. In that case, release the button, select something other than SatNav on the centre console, switch off, and start over.
Release the trip computer button, and now press and HOLD the trip computer display cycling button at the end of the left hand control stalk.
Press and HOLD the clear/reset button again.
You should now be holding two buttons. The information display in the speedo should say "RESETTING", and after about 10 seconds, "RESET COMPLETE" or something similar.
Release the buttons and switch off.
Note that the all the steps up to the RESETTING message need to be completed within 2 to 5 seconds. It helps to have three hands or be left-handed.
It's probably best to do this after an oil change or dealer service even if they ought to have done it themselves. According to the handbook service interval is normally 15,000 miles (for a diesel car, dunno about petrol) but the counter is supposed to be able to detect heavy usage that would reduce that, and react accordingly. I'd guess high engine temperatures might trigger the reduction, so the counter is doing more than just nag (and/or creating income for the dealers/service agent).
1991 XJS V12 "facelift"
2008 XJ TDVi
This is good info and very interesting, but do you know if it applies to all cars or perhaps just to diesels or may be 358's?
I've done a lot of miles and serviced my car myself and haven't as yet seen the warning.
XJS FORUM ASSISTANT COORDINATOR
1976 XJ-S - original factory manual. Currently in many pieces.
X350 - 2005 Super V8
I know we have some satisfied diesel owners on here, but I found it far too complicated and prone to problems. Oh, and the folklore of leaving the sump level well below the max mark on the dipstick, might gain more 'headroom' before the warning gets triggered, but does not solve the problem as the dilution still takes place but in a reduced volume of engine oil, risking major bearing failure. I could not wait to get back to a petrol model!
X350 3.5 V8 Sport Premium in Midnight / Ivory
X350 2.7 TDVi in Westminster Blue / Barley
X308 4.0 V8 in Meteorite / Warm Charcoal
X300 3.2 in Spruce / Barley
XJ40 3.2 Sport in Gunmetal / Saville Grey
How well I remember the last X350 seminar in Stoke on Trent. I recall that out of the 36 owners present, 24 were diesel boys. After lunch the diesel specific Q & A with David Marks started. After an hour, I`d had enough....how many ways could there possibly be to bring this 2.7D motor to a halt?! Millions, by all counts. Then the "How much has it cost me?" competition began. I couldn`t believe what some of these guys had shelled out to attempt to keep their diesels going. Thousands of pounds had changed hands with garages. One fellow said he had spent getting on for £13K and the car still wasn`t right!!!!!!! That rather blows a hole in the so called sense of running a diesel.
Like Brian, the petrol V8 has served me well. I can deal with for most issues myself. It isn`t often I need garage assistance. The V8 has so far proved bulletproof. The V6D has been described by Rob as "fragile". It must be. The front end of Rob`s diesel crank dropped off whilst sitting in traffic on the A6. Ask Rob yourself if you disbelieve this story. The break occurred forward of the No1 main bearing and the broken piece bashed its way through the front timing cover. Dead engine for ever. Totally beyond economic repair. I can do without that nonsensical liability!
When they move into the second hand market where gentlemen of a certain age potter down to Sainsbury's once a week and complain that their car isn't suited to the work it was never designed for!
The diesel X350 I had was the best car I ever had and I bitterly regret selling it!
1996 XJS Celebration Conv. (shown on the JEC stand at NEC Nov 2015)
2001 XKR Convertible
1989 XJ-S V12 Coupe. 2006 XJ TDVi Sovereign. 1995 XJ6 3.2. 2013 XF 2.2d. 2009 X Type 2.0d Sovereign estate
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