CX-5 Engine and oil warning lights came on

[Purple8]

I have a CX-5 Diesel 2016 2.2L with 84k on the clock used car.

Purchases it at 82k

Last week it came up with a vehicle system malfunction

Had it checked out

PO421-00 and PO6DE-00 error codes

Was fine driving for half an hour, then the engine light and engine oil warning light came on.

I was advised to take it on a good drive for 60 miles monthly.

I have only had it 2 months

Anyone had similar problems???

What did you end up doing ?

Thanks in advance

 

[N7turbo]

G

Post in thread 'CX-5 Diesel 2.2L engine oil pressure issue'

Oct 18, 2025

Hello everyone,

Maybe someone here has experienced something similar. I have a Mazda CX-5 2014 diesel 2.2, which I bought about 10 months ago on finance. My first issue appeared with an error saying “Vehicle System Inspection Required.” I took it to the garage, and they said it was an air-con sensor issue—nothing major.

A little later, I started getting TPMS Inspection Required and SCBS Inspection Required warnings. I went back to the garage, and they couldn’t find much wrong, except that my car only had 1 litre of oil left. They changed...

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