
Originally Posted by
austeve01
Thanks pjgrandad.
I have a RRTDV8 (3.6L) which 15 months ago I had a similar issue. On a trip Brisbane to Sydney towing a 2 tonne van after about 6 hours of travel the vehicle went into limp mode registering an 'engine system fault'. After pulling over and switching of the engine for 4-5 mins, I restarted the engine and was able to continue on for 15-20 mins before the same thing happened again. This occurred another 3-4 times before I was able to get an independent LR guy at Armidale to check out the fault. It appeared the fault had something to do with the one of the MAP sensors. He cleaned both sensors and said see how you go! Travelled another 20 mins and same thing again. By this time I was really nicked off (as was my wife!!). Sat for about 15 mins considering our options. Finally decided to push on to Tamworth and got the dealer to run their diagnostic test computer to see what the problem was. Result ... couldn't fault anything. Continued on to Sydney then returned a few days later with no recurrence of the issue. 2 weeks ago whilst towing the van for about 5 hours the problem resurfaced again (3 times). Eventually arrived at our destination, stayed 4 days returned to Brisbane and not had the issue since. This only ever occurs when I am towing the van ... never when driving the vehicle by itself. I'm taking it t M R at Redcliffe to see if they can work out what's going on. Not sure whether this engine has the same arrangement as your D4 with that 12v actuator but I'll be asking the guys at M R if it could have anything to do with it.
Thanks for sharing
Cheers
Steve
There will be codes that are an indication. I had similar issues when towing and it was related to the increased load compared to normal. My issues were air leaks - cracked plastic piece that was only slightly cracked and under normal loads didn’t leak enough to flag an alert. Once the trailer was attached, the load increased to the point of fault. A smoke test found the leak and no issues since.
2010 TDV6 3.0L Discovery 4 HSE
2007 Audi RS4 (B7)
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