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Yellow Engine Light & DPF Notification

1.5K views 21 replies 4 participants last post by  Benedict  
#1 ·
Hello all,

It's been just over 2 months since I got my 2017 Mazda 6 2.2 Diesel (57K Miles) in the UK. I picked it up from Bristol and on my way to London the Yellow Engine light popped and I used the OBD II to clear of the EGR error code. No problems for 2 months. Just daily commute to work within the city. Just 2 days ago travelled to reading and on my way back the same symbol appeared and this time when I put my feel on the gas the pick up was very bad and the gear wouldn't change until the rev reached 6K which was really weird. I had to accelerate really slowly and at a steady pace to get the proper gear change.

2 days later today I also have a "Soot accumulation in DPF too high". Today before this popped up I went to the garage and he plugged his system in and it said turbo charger code etc.

What could be the problem from your experience? Am I doomed or is this normal and can be resolved easily?

Also please if anyone knows a really good mechanic/garage specialising in Mazda around South East London i.e Greenwich, Woolwich, Lewisham, Bromley etc let me know.

Thanks in advance everyone!
 
Discussion starter · #3 ·
You are absolutely right!
The errors were Turbocharger/Supercharger error, EGR flow errors and Exhaust Pressure Sensor errors. The situation, behaviour and everything is same as yours.

Yesterday I took it to my local garage, he checked the sensors and cleared with some air pressure pipe thing and I took it on a high rev motorway spin last night. As of now no issue, performance is back and everything works fine.

I am due to go back to him on Friday morning after observation of yesterday, today and tomorrow.

Any suggestions as to what’s best to do?
 
Discussion starter · #5 ·
Hey @MazIE

Apologies for such a late response. I took your suggestion and got that part changed at my local mechanic and also done a quick servicing as well. No problems after that as I was driving in the city, a lot of quick start and stops as well as short trips - No issues whatsoever. 3 days ago I got a Battery Management Malfunction flashing for 10 minutes and then it was gone. The mechanic told me during the service that I need a battery replacement. 2 days ago I took the car on motorway London Woolwich to Chatham which is a 30 minute drive- No issues. While driving back, 5 minutes into the journey the Yellow Engine light popped back on and did not go. Next day took it to the mechanic, he changed the battery to a new one and cleared the errors and suspected the error was because of the battery. I am due to take it on a spin tomorrow again on the motorway because I want this resolved ASAP as I will be driving it for 7 hours straight on a motorway from London to Bangor, Wales on Friday and I don't wish to encounter any issues.

Please let me know if you have any suggestions for my situation.

Best Regards
 
Discussion starter · #7 ·
Before he cleared the CEL, did he check what code it was throwing?? (Really he should have..) It was probably warning you again of the EGR insufficient flow (to my point #6 on previous comment).
I would say equip yourself with an OBD reader so you can keep an eye on it yourself for next time. If it is the EGR error, you can continue driving, but should get it cleaned eventually.
@MazIE Yes, I have an OBDii reader and the error was exhaust pressure insufficient flow.
 
Discussion starter · #10 ·
+ @Helmsman check out my post here with the carbon that was present on my intake ports, yours would be looking similar right now :)
Hi @MazIE ,



Took it on a spin and just back home. Did Auto Transmission @ 50MPH for 15 minutes and the manual for 25 minutes on 3rd gear 70MPH 5K RPM. On my way back the light came back on again while coming back so continued Manual 3rd gear 70MPH 5K RPM but no change.



I am attaching the picture of the OBD reader to this reply. Honestly, it is a bit worrying for me as I do not have much experience with car problems. This is my first car and I bought it 4 months ago.

I would like to understand:

1) Can I keep clearing these errors everytime they pop up?

2) The 300 Mile trip to Bangor and back to London - should I drive the whole trip in manual with high revs (if so let me know how exactly) or should I just do normal auto?

3) I assume to have no problems whatsoever going forward I need to get the EGR carbon cleaned etc.. how much would this approximately cost me in total?

Thank you very much for helping until now and I'll be grateful if you can advise me what's the best thing to do.
Image
 
Discussion starter · #15 ·
Hey everyone! I know it has been a while but I went through quite a lot of other stuff in the last few months including moving home etc so couldn't get back as I did not get time to get this sorted.

The mechanic near my house checked the car today and said there are 2 parts of the EGR Valve, one is the mechanical part - which looks fine and the second is the electrical part - which needs replacement. He quoted ÂŁ325 including labour but obviously not original Mazda part. He also suggested I remove the DPF and remap the car to avoid future problems.

Some suggested I sell car altogether but I can't because I got the car on HP.

So I am going to have to make a decision now as to what the right solution would be for the car as well as me.
 
Discussion starter · #17 ·
I have given the car back to the finance company and settling it with them. Looking to buy another car now. Something cheaper.

I was looking at more Mazda 6. Does having a Manual over an Automatic help in anyway?
 
Discussion starter · #19 ·
@Benedict Appreciate your advice. I was literally on the verge of getting my Mazda 6 repaired completely because I just loved my car too much to let it go.

But in the end the reason I let the car go was because of how expensive the finance was going and not the issues with the car itself. I was not financially mature enough and made terrible financial mistakes. Its fine because I'm still in my 20s and I have now got hold of my finances and realised all credit cards and car loans are genuinely bad if you don't know how to use and manage them.

So, my decision is to buy a car with cash now. And I made a terrible mistake in the middle - decided to buy a cheap car, went to the auctions and bought a 2010 Ford Mondeo 2.0 EcoBoost. After I took the car and drove the mechanic he told me the head gasket is blown and that it would cost be ÂŁ1500 minimum that if the only issue is head gasket. I literally got the car for ÂŁ1500 so makes no sense to spend another ÂŁ2000-ÂŁ2500. I'd rather sell and stick to my instincts.


I am saving again now to buy a Mazda 6 but I want a manual petrol this time.

For time being I'm using my mate's 3 Series.