Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

[MattBLancs]

Because these are temporary spikes causing the issue might be worth checking the earth locations?

Will have a look at earth points, at some point soon!

Found a thread talking about the amp shutting off as a "self protection method" in the event of a speaker channel going open circuit. Poor connection at amp and at speakers / door jambs. Seems plausible.

More pressing, the car has given

Engine fault, repair needed

Message, SERVICE light on and horrible limp mode (refusal to rev over 2000 rpm and what feels like about 30 bhp instead of 150!

Quick read of faults this morning before commute to the office

[MattBLancs]

Engine faults

1

2

3

BSI faults

BSI faults

Power steering overheating, ages ago!?!

PAS

[MattBLancs]

Rate of engine oil dilution excessive,
Estimated dilution rate: 10%

I'm fairly sure it's about 6 litres of oil in the sump, so 600 ml of diesel from failed regents!? Seems a lot. Not aware of any other mechanisms for oil dilution.

Oil change at the weekend as first step.

Think "last 10 regents average" was something like 180 km, not ridiculously short.

All thoughts welcome!

[Huskyxantia]

My 308 was erratic for most of the hot weather with regen stuff , since the weather has gone back to normal its only done 1 in about 8 weeks.

When they need a service they can regen or fail to do a proper one , give the car a full service, if you can use that dpf cleaner you spray down the dpf then give it a run ( instructions on can plus videos on youtube)

[CitroJim]

Rate of engine oil dilution excessive,
Estimated dilution rate: 10%

I'm fairly sure it's about 6 litres of oil in the sump, so 600 ml of diesel from failed regents!? Seems a lot. Not aware of any other mechanisms for oil dilution.

Oil change at the weekend as first step.

Think "last 10 regents average" was something like 180 km, not ridiculously short.

All thoughts welcome!

Just a few potential reasons Matt. Bad injectors, worn rings, worn bores, worn pistons.

I'm intrigued to know how the system determines this... Oil level perhaps?

[MattBLancs]

Rate of engine oil dilution excessive,
Estimated dilution rate: 10%

I'm fairly sure it's about 6 litres of oil in the sump, so 600 ml of diesel from failed regents!? Seems a lot. Not aware of any other mechanisms for oil dilution.

Oil change at the weekend as first step.

Think "last 10 regents average" was something like 180 km, not ridiculously short.

All thoughts welcome!

Just a few potential reasons Matt. Bad injectors, worn rings, worn bores, worn pistons.

Not raving about that list of possibilities!

I'm intrigued to know how the system determines this... Oil level perhaps?

Quick googling at lunchtime:

Yep, high oil level + number of incomplete regen attempts is apparently the trigger.

Oil change, reset codes and see how it behaves is my plan.

[RichardW]

180km is pretty short for regens ; it probably needs the DPF flushing out to get rid of the ash.

[MattBLancs]

180km is pretty short for regens ; it probably needs the DPF flushing out to get rid of the ash.

Good thinking, will investigate cleaning this out.

Replacements are £600 on Autodoc!

[Huskyxantia]

https://ebay.io/m/WaF7SV. ?

[Huskyxantia]

My 308 hasn't done the risk warning now in over 600 miles, I did 2 weeks ago add 20 quids worth of the supreme diesel that all new stuff that came out several yr ago that most avoid due to its price, you watch i get the warning pop up today lol

[MattBLancs]

https://ebay.io/m/WaF7SV. ?

Thanks Husky - unfortunately that's not the right type - with mention of Euro 5 I suspect that's first generation 308. On my 2016 model it looks like this:

Berk for scale

DPF one long piece, not "half and half" like that one.

Lots of rusty fittings tackled today, DPF off the car. Clean out tomorrow hopefully

[Huskyxantia]

Looks like a torpedo

[MattBLancs]

Looks like a torpedo

It's a big heavy lump! I thought DPF and catalyst were both in this unit, but there's another "lump" in the exhaust further up towards the engine - perhaps that's the catalyst?

Adblue injector clip is retained with a 4mm alien head bolt, not rusty (stainless I think) but not budging at all, so to tackle off the car.

Oil drained. Oil filter stupid tight, not defeated that yet. Need to find my strap oil filter wrench (it's rare I need to use it, I can normally get the filters off by hand - not this one!

[Huskyxantia]

Sounds like that filter hasn't been changed for a while and has been getting hot top , great job on what you have done today

[MattBLancs]

Sounds like that filter hasn't been changed for a while and has been getting hot top , great job on what you have done today

Yep, pretty sure it's original item. 119,000 miles covered.
In comparison, the blue 308 SW was at 156,000 miles and DPF hadn't played up for me - again as far as I know that was original unit. Perhaps the red 308 has done a great many more short trips and hence greater amount of soot "per mile" over it's life. Ah well, hopefully it'll respond well to a cleaning attempt