Fuel system service - warning on display

[sloperrs]

Good morning all, my 2020 exceed PHEV is showing 'Refueling system service required' Has anyone any ideas on this please? Called the dealer they said 'drive it around a bit' which is different to the handbook. vehicle has 4600 miles on it. Many thanks, Bob.

 

[Solargen]

I have owned by PHEV for 3+ years and for the first time I had the dreaded fuel system warning sign appear and the petrol engine roared into life. Due to covid restrictions I haven't been able to drive any long distances and its been 3 months since I last added any fuel. Some interesting observations, noise - now i know why I will never own another petrol engine car, fuel consumption - have been getting around 10l/100m which based on my experience with subarus is fairly typical for a petrol engine car with a 2l motor. Because the petrol is running all the time it keeps the battery fully charged which you then cannot really use and therefore regen braking is virtually not existent.
Finally, I can't understand why anyone would own of these cars if they weren't prepared to charge it - they are very average car when used on petrol only in suburban use.

 

[jaapv]

If you don't top up on fuel for three months the car will display a warning and burn up enough fuel to enable you to fill up. This is to avoid driving on spoilt petrol and moisture contamination of the fuel. SO - NO WORRIES.

 

[kpetrov]

I had the dreaded fuel system warning sign appear and the petrol engine roared into life...have been getting around 10l/100km
Finally, I can't understand why anyone would own of these cars if they weren't prepared to charge it - they are very average car when used on petrol only in suburban use.

Even if one do not charge the consumption is not 10L/100km. Your vehicle is in special mode now as you know, which elevate the consumption a lot.
Disable it or live with it.

 

[Fancy McDancy]

Good morning all, my 2020 exceed PHEV is showing 'Refueling system service required' Has anyone any ideas on this please? Called the dealer they said 'drive it around a bit' which is different to the handbook. vehicle has 4600 miles on it. Many thanks, Bob.

Hello sloperrs. Did you get this resolved? My car has just started showing the same warning (2020 Dynamic Safety) but I top the fuel tank up every month. Where in the handbook does it refer to this warning?

 

[littlescrote]

Hello sloperrs. Did you get this resolved? My car has just started showing the same warning (2020 Dynamic Safety) but I top the fuel tank up every month. Where in the handbook does it refer to this warning?

Top up how much at a time? If you only do a little bit now and again, you will not rest the 3 month stale fuel counter. It needs to be a significant refill from near empty (I forget the exact numbers).

 

[Fancy McDancy]

Top up how much at a time? If you only do a little bit now and again, you will not rest the 3 month stale fuel counter. It needs to be a significant refill from near empty (I forget the exact numbers).

I don't top it up every month really, I just said that to save time. I fill up when the joint battery/petrol range shows below 100 miles. Interestingly, I took the car to my local garage this morning and they ran a diagnostic. Apart from a wide range of inconsequential "faults", it showed a "gross fuel leak". There isn't actually a leak at all (it had an MOT last week and an oil and oil filter change last Monday so it would have shown up) and when the mechanic cleared all the fault codes the warning disappeared and hasn't reappeared. Yet.
By the way, the car is running fine on both battery and ICE.
If anything else occurs I'll come back to the forum.

 

[Haenzel]

Top up how much at a time? If you only do a little bit now and again, you will not rest the 3 month stale fuel counter. It needs to be a significant refill from near empty (I forget the exact numbers).

I seem to remember it is at least 15L...

 

[Polyian]

I seem to remember it is at least 15L...

Mines tells me in the warning...top up minimum 20L (15 gal). I try to keep the fuels gauge around 1/2 or less at 3 months time to accommodate this.

 

[Fancy McDancy]

Mines tells me in the warning...top up minimum 20L (15 gal). I try to keep the fuels gauge around 1/2 or less at 3 months time to accommodate this.

Hi Polyian. I think 20 litres is more like 5.3 US or 4.4 Imperial gallons. Not 15.

 

[Polyian]

Hi Polyian. I think 20 litres is more like 5.3 US or 4.4 Imperial gallons. Not 15.

You are correct, sorry about the bad conversion info.

 

[AndyInOz]

On mine, it may mean top up to 20 litres.

The reason I say this?

Just had the fuel warning last week, and put $20 in the tank.

That $20 bought slightly more than 10 litres ($1.80 per litre for the clean fuel I use) but still cleared the warning and 'perma charge' behaviour.

The fuel I put in was sufficient to cause the gauge to show a fraction over half full.

 

[Polyian]

On mine, it may mean top up to 20 litres.

The reason I say this?

Just had the fuel warning last week, and put $20 in the tank.

That $20 bought slightly more than 10 litres ($1.80 per litre for the clean fuel I use) but still cleared the warning and 'perma charge' behaviour.

The fuel I put in was sufficient to cause the gauge to show a fraction over half full.

I had a similar experience a few weeks back. Only added $20 instead of 20 L. The message was cleared but came came back intermittently a few days later. Finally cleared it by adding 21L. I can't explain why if partially cleared.

 

[Fancy McDancy]

I don't top it up every month really, I just said that to save time. I fill up when the joint battery/petrol range shows below 100 miles. Interestingly, I took the car to my local garage this morning and they ran a diagnostic. Apart from a wide range of inconsequential "faults", it showed a "gross fuel leak". There isn't actually a leak at all (it had an MOT last week and an oil and oil filter change last Monday so it would have shown up) and when the mechanic cleared all the fault codes the warning disappeared and hasn't reappeared. Yet.
By the way, the car is running fine on both battery and ICE.
If anything else occurs I'll come back to the forum.

The warning light has reappeared. I drove for around 32 miles yesterday and the warning light stayed, but the car drove perfectly. I'm stumped.
I'll call a Mitsubishi service centre tomorrow and see what they say.