DMF

[Akbar]

Hi All, can someone please confirm if my Auris 1.4 d4d 2014 has a DMF. Getting a vibration at 1800-2100 rpm in 4th 5th and 6th.

many thanks

 

[jcps001]

No DMF on that engine. Only 2.0 and 2.2 D4D.

[Akbar]

Thank you for your reply!! Could it be a clutch problem as I struggle to get car into 1st unless I stop, lift foot off clutch, press down again and then I can get 1st ok. Car has done 120,000. Thank you

[Gerg]

When the DMF failed on my 1.9 PD engined Skoda, at 135,000 miles, the symptoms were not the same as yours. On mine it was particually evident as a rattling at tickover.  Someone once said a failed DMF, at tickover, sounds like 'a load of cutlery in a washing machine', and I can agree with that. At speed, mine was fine - at the higher revs the DMF's not doing much, if anything at all.

Does sound much like a clutch-related problem.  Was it sudden?

There's no car mats sliding under the clutch pedal at all?

[Cyker]

Yeah DMF on their way out normally manifest more of a knocking sound at high-loads/low-RPM.

Struggling to get in to first depends on the speed; In most of my cars, not just Toyotas, none of them have let me go into 1st unless I'm going very slowly, like sub 5mph, so that might be normal.

Likewise the vibration at some RPMs was something I'd noticed in both my old 1.4D4Ds too, but I normally just powered through them or lifted off to make it go away. I seem to recall someone posting there was a TSB to fix vibrations at certain speeds; I believe it was an ECU update, but can't find the post so it might not have been for this car/engine.

It could be the damping springs on the clutch plate are wearing out or getting a bit stiff because of the cold weather, but if the clutch bites okay it's not worth changing it just for that.

 

[Bernard Foy]

It’s a quirk I’ve found in several Toyota’s I’ve owned a reluctance to go into 1st gear, and it’s was just one of those things I learned to live with. Like the OP I had to press the clutch twice or pull it back into 2nd and then shove it into 1st. Absolutely no problem with any of the other gears ever.

[Akbar]

Thank you all for the replies, will try not to worry about it then!!! Will keep you posted if I get anything sorted.

many thanks

[Cyker]

If it starts to get worse then some more investigations would be warranted, but on mine I'd get that vibration only under very specific rpm and loads so I just put it down to a resonance at that rpm and load.

[jcps001]

On 12/19/2022 at 12:54 PM, Akbar said:

Thank you for your reply!! Could it be a clutch problem as I struggle to get car into 1st unless I stop, lift foot off clutch, press down again and then I can get 1st ok. Car has done 120,000. Thank you

I don't know about the newer Auris, but the older ones (Mk1) and the Yaris with that engine and a six speed gearbox are known to produce that vibration at those rotations.

On a previous thread, sometime ago, I wrote that before I bought mine, I did several test drives on some Mk1s, and asked a Toyota mechanic I knew about it. He said to me that it was not a problem, it's something normal on those cars equipped with that engine and a six speed gearbox.

If that is only your problem, I don't think you should be worried.

[TonyHSD]

On 12/19/2022 at 12:54 PM, Akbar said:

Thank you for your reply!! Could it be a clutch problem as I struggle to get car into 1st unless I stop, lift foot off clutch, press down again and then I can get 1st ok. Car has done 120,000. Thank you

You will need to double check the clutch hydraulics. Check under clutch pedal for any brake fluid leaks.