In our search for a 4.4tdv8 I had thought we had found the one ! have been back to this particular one twice in the last 3 weeks and ended up agreeing a price over the phone and on an extended test drive about an hour going lovely happy with it etc I had done quite a few hard Accelerations to check the second turbo and thought to myself this is mine ! And on the last roundabout before going back to his house a restricted performance code of p006-a had popped up .

We googled the code and had a look around the pipes off the donut but couldn’t see any splits visually and although travelled to bring her home and it being night had to postponed the deal !

He said he will get it looked at by a professional but in anyone’s experience code this code point to anything serious and to walk away from it to add I turned up unannounced to get a real cold start and it did initially say dpf full but popped off during the drive as my disco4 used to do .

The service history is plentiful all receipts and a full book and I like the colour combo

Could be a dirty MAf. how much is it and what mileage/year?

Usual things:

1. Remove and clean the MAP sensor
2. Check for splits in the donut and top charge hoses (6 in total, sometimes these cannot be seen without removing the hoses and having a thorough look and squeeze)
3. Failed seal inside the union which connects the top hose to the throttle body (has a metal clip on it). Telltale signs are soot in the vicinity and/or on the insulation foam next to it. The highlighted areas showing the collapse:

Click image to enlarge

Clean the MAP sensor not the MAF sensor;) 2012 TDV8 Vogue (L322)

2012 100k miles

We did think the union was loose and could feel air passing when revved at standstill … also was a little oily around that region the other areas seemed ok at time of looking

I’ll see what the garage has to say and fingers crossed go from there

The union is a well known cause of the problem you have described


If it is this, don't let it put you off. A brand new part is £175 and it takes 5 minutes to fit with no more than a screwdriver. An interim/diagnostic fix can be achieved with a 50p roll of gas specification tape from Screwfix/Toststation (that said, mine has now been on for 2,000 miles):