change-man
Member
- :
- Mazda CX5 High Diesel 2012
I'd say it's a lock at this point that it won't be coming in April. doubt we see it at all in CY13 since it wasn't announced and the update has already been tagged as a 2014 model.
I am in Australia and have owned a CX5 Diesel auto since July. The car has had oil changes at 2800, 4000 and 7600 kms. A Mazda Aust enginer looked at my car and took an oil sample at 4000 kms. He said that it only had 1% of diesel in the sump oil and no metal. At 7600 I asked the Mazda dealership (service) to take samples for me and they were tested by an independant laboratory (Caltest of Caltex). Their report stated that the diesel in the sump oil was around 7% and was 'severe'. I have passed this onto Mazda Australia.
New diesels usually get active and passive regenerations of their DPF (diesel particulate filter). I noticed that my car had an active regeneration at 8020 ks.. I then drove 300 kms in 5th gear at 2500 revs, on a 34C (93 F) on a quiet 4 lane highway, with the airconditioner on. At that 'magical' 200kms it went into active regeneration. The speed, revs and heat in the DPF did not result in a passive regeneration.
No wonder my sump is filling up with active regenerations every 200kms (DPF 45% full?) and potentially no passive regens. A bit of research revealed that possibly up to 10% of Aust CX5s are suffering from the fault.
I'm old and this is my retirement car. However I can't take it to places in Australia that I won't to go to because of the oil issue. Internet research has shown this has been an issue before April - but I was not informed of this known potential fault and the car was delivered not fit for purpose.
Long term? I think that a new dipstick and an ecu reporgram won't fully address the issue. The other problem is diluted oil in the sump and its impact on engine logevity. It is not only my car but all of the 2.2 liter diesel engines out there. I have put the info to Mazda Australia and wait for their response.
Is there anyone who can clarify passive regeneations in CX5s?
Tks