Problems with purchase of Koleos

TenBeers wrote: »

Am in the process of doing so.

What I would suggest then is refraining from further comment here so that you don't prejudice your position pending that advice and how it dictates your next steps. On the face of it, you may have a very good case.

I didn't have time earlier to pen this story but will add it now for potential benefit as elements of it may be relevant to this discussion.

My brother had two Vivaro vans: a 2010 and a 2012. Both had the same Renault M9R diesel engine and DPF's. He had the 2010 van for 3 years till it was written off by an errant truck but thankfully he was uninjured. He replaced it with the 2012 one bought from a main dealer. All went well for about a month and it threw on the warning lights and logged fault codes for DPF ash accumulation. It went back to the dealer who did a regeneration and oil change. Another troublefree few weeks passed till the van repeated the same DPF issues again. The response of the garage was to blame my brother's driving habits but he countered it with the previous van used identically being troublefree, and if this van couldn't hack it then there was something wrong with it or he was missold it.

Cue a few days of heated exchanges with the garage, another regen, and the DPF pressure sensor changed, and I offered to take the van for a bit and monitor it with my scantool (MaxiECU) which had an excellent van specific module. I cleared a few fault codes and drove it and could clearly see ash accumulation rising over time and no evidence of a regeneration happening, despite my driving being favourable for it. A check on the latest fault codes did show something very interesting: there was a code logged for a P0504 Brake Pedal switch correlation. The garage has dismissed that as irrelevant but I looked further at it. The switch has two circuits: one to work the brake lights and the second to tell the ECU if the brakes were being applied. The latter circuit was showing the brakes on when they weren't even though the brake lights were out. Lifting the pedal with my toe resolved it. The ECU was flagging the fault because the vehicle was being driven but seeing both the brake and accelerator being pressed simultaneously and almost constantly. The brake switch was clearly faulty and ash accumulation was now around 70gms which was in the zone for a regen but climbing. The garage swapped that switch after much hassling, and the car did a regen on the way home. The DPF fault never reoccurred since and the van has been perfect in the 2 years since. Obviously if the ECU thinks a brake pedal is constantly being pressed in those circumstances, doing a regen wouldn't be good.

So my conclusions from this and with DPF issues are:

1. Driving habits are not necessarily to blame. Two identical vehicles used the same with one giving trouble is proof of that.

2. Some AND NOT ALL dealers may not have a full grasp of the technology they are selling and supporting. It's very easy to read a scantool but some techies may not fully understand what is giving rise to what they are seeing and allow themselves to be misguided by it. In essence they can see a headline but don't know the story in full.

3. Indies that do DPF work tend to have a better handle on how these systems work and have proper equipment to test everything. This isn't just scan tools, but pressure sensors and scopes. Even if dealers have these, some of their techies may not be au fait, and some may know it inside out. It depends where you go.

I'll add too that I drive. Renault - a 2010 Clio. I've had it 4 years and it's been fine

TenBeers wrote: »

80-115km/hr for almost an hour doing between 50-70km per journey?
Hope the guards are monitoring these posts ;-\

My 2014 renault fluence 1.5 dci had been serviced recently by my indie mechanic and he asked me if i got the fluence remapped, he's shocked with the power, but the fluence wasn't, it is still 110hp.

I do about 500km per week commuting and every second early sunday morning i blast the fluence upt to 120-160km/hr for 40mins on the motorway that's about 4-5k rpm and that is not me trolling.

Regards with dealership, I bought mine off windsor galway main renault dealer online, got it delivered at drogheda windsor, and few days after driving, it had engine failure warning, the windsor motormall, said it was fuel pump trouble, timing belt and water pump also had to be replaced. I was under warranty so they took care everything it was a big job so I have to leave the car for 1 day and they even lend me a 2019 renault clio. That's my experience with renault so far. 1.5 dci full tank 1000km range, very economical.

Take it up with the dealer.


Thread reopened after PM discussion, and title and OP updated.

TenBeers wrote: »

Cant post vid or other pics as too large

here download and use this to make pic's smaller (its easy to use)

back to topic: no way would i accept that, seems to me they did it out of spite...did you have a heated argument with them in the past? or something?