Range Rover Evoque - garage has had it 4 weeks due to fault

bigjl

colino wrote: »

Unfortunately a few of them seem to have this fault. It sounds like your garage has been told to wait for yet another software update (like many manufacturers, it will just give a wider tolerance of failure so the warning lights don't come on), but you need to complain long and hard to get to the top of the fix queue.
I have to admit, they would normally have blamed you and supermarket fuel by now.

Have you actually used a DPF engined vehicle and compared how often they Regen on the different fuels?

As if the additives missing from supermarket fuel were unimportant due to the relative small amounts present then surely Eloys fluid would not work and neither would AdBlue.

But that is a moot point since Eloys fluid and Adblue do work as does the better additive package in premium fuels.

I very rarely use supermarket fuel.unless the choice is use it or run out.

I have put hundreds of thousands of miles on diesels over the last 10years.

My wife uses supermarket fuel all the time.

Do you want to guess whose diesel ended up smoking like a dog with injectors sounding like a bag of spanners?

Johnmcl7

The supermarket fuels are certified to the standard required by the manufacturer, if the car can't run on supermarket fuel then there's a fault somewhere - none of my diesel cars had trouble with supermarket fuel (nor anyone else I know who fills up regularly with it), if a car has ended up 'smoking like a dog with injectors sounding like a bag of spanners' there was clearly something else very wrong with it. Given the large number of cars using supermarket fuel if it had the terrible effect on cars you've claimed, there would be widespread and consistent problems affecting huge numbers of cars relating specifically to supermarket fuel yet there aren't.

Eloys and adblue are very specific cases that have no relevance at all to additives in fuel.

As I assume colino was referring to, it's just an easy cop out for companies to blame problems on supermarket fuel.

John

daveyjp

My love affair with diesel went after I tried doing 12,000 miles a year doing similar journeys. Commuting in urban traffic, with motorway trips at weekends. It would regen every 500 miles which began taking longer and longer to complete. The subsequent reduction in oil services from 10,000 to 6,000 miles was the last straw.

After 18 months and 20,000 miles I knew the trips were killing the car and it would get expensive for me so I went back to petrol.

loskie

http://www.honestjohn.co.uk/faq/consumer-rights/


OP: for a diesel to work correctly you need to be doing journeys of sufficient length and revs to get the engine up to temp and DPF working correctly. Your dealer should explain this prior to purchase although buyers often only hear what they want. Not intending to sound rude.

Iceweasel

Spanish_Escape wrote: »

3 weeks later and 300 miles more on the clock the same thing happened again.

3 weeks and 300 miles - that's your underlying problem.

OK there is a sensor fault but you bought a car unsuited to your use.

My diesel-engined car couldn't cope with that kind of miles very well either.

Why did you not get the petrol engined version?

You say your dream was to have an Evoque - I had a string of LandRovers and despite a few niggles I stayed loyal to the brand - when BMW took over the engines improved beyond all recognition.

Then they fell into the hands of Ford - and now that LR is Indian owned and chiefly targeting the US of A I've deserted them for ever.

Not my kind of vehicle any more.

My advice (if you must have an Evoque) is to chivvy the dealer for a good deal on a trade-in on your current one for a petrol engined version.

Even if they fix the current fault, the way you use the thing it's going to give more trouble in the future.

IamNotAllowedToUseMyName

My personal theory on DPFs is that they are a filter on an inherently dirty engine. If you watch an unfiltered engine, you will see that there are two specific modes of operation that throw out soot - hard acceleration and high revs.

I don't do high mileage in our diesel Merc but have no sense of impending doom - that I put down to driving style where I do not boot it (probably used kickdown - never, foot to the kickdown point half a dozen times in 18 months). Don't believe I've exceeded 3000 revs (automatic).

Doing very low mileage in a diesel, then you need to drive it like a granny rather than in a spirited way.

Friend has a Mazda 6 estate and it is about 3 years old. A good driver, but I noticed that she does tend to accelerate firmly (classic liking the feel of a turbo diesel). She has a 15 mile commute each way on fairly easy rural roads, but a few weeks ago went down to Richmond for a few days. In those few days, that urban driving was enough to trigger the DPF. Had it cleaned and no further problems as she is no longer doing the London suburban driving.

colino

OP, just to stress, LR and other manufacturers are pointing to the sensors as faults. While there will be some genuine failures, they most often are acting exactly as designed; their "cure" is to alter the software to allow a wider tolerance in operation so that the ecu doesn't trigger a warning light on the dash. Nothing of value is actually being changed, just the dashboard isn't indicating what the original engine designer decided was acceptable.
Until they're actually improving and fitting new engine hardware, your not getting a cure, they are masking an underlying fault. The early Jaguar X Type diesels are an example, they tinkered with the software to keep the customers happy (no warning lights!) but they often failed their first MOT as their actual, running emissions were so high!

almillar

Enjoy the hire car! This is mileage at someone else's expense, that's not going on your car. As you say it'll be costing them, so it's in their best interest to fix it ASAP. If you were driving around in something rubbish it'd be frustrating I guess. Surely with the number of diesel Evoques around there can't be one in the country with dodgy software...
Also, short journeys are bad for diesels with DPF so try to avoid those if you can.

Strider590

Johnmcl7 wrote: »

DPF's can be more problematic if the car is used for lots of short trips as that means the car can struggle to regenerate the DPF to clear it out which in time if it keeps failing means a trip back to the dealer for a forced regeneration.

This clearly isn't the case with your car though as it's a sensor failure which could occur regardless of how suitable your driving is for a DPF.

John

You can't really say that, in the case of sensor failures, how do you know if its the sensor or the thing it's actually sensing?

For example: Is your fuel level low, or is the sensor faulty?

Ectophile

harveybobbles wrote: »

Buy petrol.

That will knacker the engine in no time!