I would suspect the brake light switch first.
Hey all,
I wonder if anyone has any ideas on this. We have a late D3, and since it's last service we've had an intermittent problem.
Start from rest, the car can be almost non responsive to the throttle. Very sluggish acceleration, and then it finally gets up and going. I'd suspect the fuel filter (which was changed), but once on boost the power seems normal.
I have an IID tool, and there were no codes shown. The TPS seems to respond normally too. We had something a little similar happen in out D2 where the waste gate wasn't moving freely, hence no boost at low power settings. In this case though no excessive smoke, and no over boost codes, which led to an incorrect diagnosis by the last mechanic & cost us a new MAP sensor, buts that's another story.
Anyhooow, we're two hours from the nearest dealer, and when I rang the service adviser didn't seem to have any ideas where to start looking anyhow. I'm reluctant to take it ti the workshop and pay for a heap of hours that may not fix the problem anyway.....
Does anyone have any ideas? it did throw a code a couple of weeks back, but I cleared it without noting the numberIt runs fine for a while, but when it plays up its dangerous..........
I would suspect the brake light switch first.
Bob
2010 D4 3.0TDV6 SE, ediff, LLAMS, 5 x GOE wheels, LT285/60R18 BFG K02's, GOE Compressor Guard, LR Tank, Mitch Hitch, ECB Bull Bar, Kaymar Rear Bar, Traxide, Safari Snorkel.
2019 Discovery 5 SD6 SE, 20 inch wheels, 275/55R20 Nitto Grappler G2 tyres
Agree. Just had mine replaced after having sluggish response and DSG code off. Different vehicle now.
Gotta love this forum! Thanks for the response guys![]()
Hi Mat,
Could also be worth checking for a sticking turbo actuator.....
Andy
Although with that you'd also get excess smoke
Andy
Thanks Andy,
is there somewhere on here I can go to for a method for checking the actuator? I don't think I'm getting excess smoke, when our D2 was giving trouble like this I could see the smoke in the rear vision mirror. Not so in this case......
Hi Mat,
Have a look here
DISCO3.CO.UK - View topic - Grease up your turbo actuator rod IMMEDIATELY!
Of course I may be way off the mark
Andy
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