Originally Posted by rchris

I have a NZ new CX5 D which I purchased new in June 2015. It’s now has 170,000ks which is a mixture of city driving and open highway driving of around 200k trips. I have always had the engine service completed on time or early with fully synthetic DPF compatible engine oil.

I have had the Mazda Recall for the injector seal washers and a couple of other minor recall items, rear hatch gas struts ect.

This is this the absolute best diesel car I have driven or owned, very quite sounds like a petrol engine, massive torque both low down and on the highway. My average fuel consumption sits between 6.7 -6.9. Goes to 10.8 when towing 22 ft caravan which is still great.

I have never had OIL level move either up or down between oil changes.
I have never had the radiator lever change in the expansion tank outside of the normal range.

I have never had any issues with my engine, or any engine lights. I do not use the stop start functionality - ever, maybe this has a detrimental effect on these engines. If you want to disable this functionality, easily fixe by adjusting micro switch in the bonnet catch, the start stop is disabled if the micro switch detects the bonnet is not shut completely.

my back brake pads wear faster than front brakes and the outside back brake pad wears twice as fast as the inside one, so at 30,000 k rotation is good. I have read that with electronic braking the computer programs light braking to the rear first then front brakes during heavy braking, as I am not a heavy breaker it may be why my rear brake pads wear faster than front brakes.

I’m sorry to hear that some owners are having a bad run with the CX5 diesel engine but it appears from the amount of these that were produced and sold these problems are in the minority group. Unfortunately all vehicles have a common weak point, I had a Jeep Wrangler 4.0 and these had a common tendency to break a piston skirt but again it was a “common minority”

Again I’m sorry if you have fallen in the minority group with this engine problem but the majority of the CX5 diesel owners are very happy with this vehicle. Every vehicle type has a forum group discussion regarding common problems which is a great source or information.

Originally Posted by Richard kalitendere

What can be a problem of of this car it's bringing back water to radiator cup immediately after I start the car even in the morning when I wake up

Originally Posted by grim_reaper

Apparently they fixed the issues on later CX-5s, if not the newer KF series.

Originally Posted by Thrustco

I have problems with my 2012 Cx 5. Last year I had the well known oil problem which I managed to get Mazda to sort for me. Now, a year later, there is a suspect head gasket problem at 125,000 kms. Surely this is not right, and I am getting the sense that this too, is a known problem. My local dealership are hopeless, and I have gone to Mazda in Auckland for the diagnosis. They're not suggesting that this is another built in fault, but from your post I am suspecting it is. Is this a common and known fault in these cars?

Originally Posted by rchris

I have a NZ new CX5 D which I purchased new in June 2015. It’s now has 170,000ks which is a mixture of city driving and open highway driving of around 200k trips. I have always had the engine service completed on time or early with fully synthetic DPF compatible engine oil.

I have had the Mazda Recall for the injector seal washers and a couple of other minor recall items, rear hatch gas struts ect.

This is this the absolute best diesel car I have driven or owned, very quite sounds like a petrol engine, massive torque both low down and on the highway. My average fuel consumption sits between 6.7 -6.9. Goes to 10.8 when towing 22 ft caravan which is still great.

I have never had OIL level move either up or down between oil changes.
I have never had the radiator lever change in the expansion tank outside of the normal range.

I have never had any issues with my engine, or any engine lights. I do not use the stop start functionality - ever, maybe this has a detrimental effect on these engines. If you want to disable this functionality, easily fixe by adjusting micro switch in the bonnet catch, the start stop is disabled if the micro switch detects the bonnet is not shut completely.

my back brake pads wear faster than front brakes and the outside back brake pad wears twice as fast as the inside one, so at 30,000 k rotation is good. I have read that with electronic braking the computer programs light braking to the rear first then front brakes during heavy braking, as I am not a heavy breaker it may be why my rear brake pads wear faster than front brakes.

I’m sorry to hear that some owners are having a bad run with the CX5 diesel engine but it appears from the amount of these that were produced and sold these problems are in the minority group. Unfortunately all vehicles have a common weak point, I had a Jeep Wrangler 4.0 and these had a common tendency to break a piston skirt but again it was a “common minority”

Again I’m sorry if you have fallen in the minority group with this engine problem but the majority of the CX5 diesel owners are very happy with this vehicle. Every vehicle type has a forum group discussion regarding common problems which is a great source or information.