Initially came on pulling into the works car park. This was after driving through a village and prior to that, several miles of motorway. Got it again once more on way home stopping at a roundabout.

 

Levels maybe 3/4 to1/2 so topped it up at home. Next day same again in the car park (there is a steep ramp 🤔) and a few times on the way home but not on motorway, just rural & suburban conditions. 

 

Loud bleeps, rapid flash and resets after say 30 seconds. Engine sweet at all times. 

 

Regular garages not available, thinking of chuck some parts at it. 

 

 

Unplug the single-wire connector from the oil pressure switch, looking for oil inside the connector. 

If there is any, replace the switch.

100% the pressure sensor. Had this happen to me on the M5 at high speed, scared the crap out of me.

 

New sensor fitted the next day and problem has never come back. 

On 16/10/2024 at 07:32, Breezy_Pete said:

...looking for oil inside the connector.

Seems clean.

1 hour ago, Kalum0101 said:

100% the pressure sensor....

 

New sensor fitted the next day and problem has never come back. 

For what it costs, going to replace it. Lucas part.

Switch changed, not much improvement. Noticed light never comes on doing 65-70mph on A1 or main roads but does if revs drop below 2000 like taking a roundabout or side road.

 

Blocked oil filter maybe time for a change, not sure when I did it TBH. 

9 hours ago, LesCM19 said:

Switch changed, not much improvement. Noticed light never comes on doing 65-70mph on A1 or main roads but does if revs drop below 2000 like taking a roundabout or side road.

 

Blocked oil filter maybe time for a change, not sure when I did it TBH. 

Ah, I'd have suggested an oil change if you'd said that first.

Still it is what it is, so oil change next, and then wonder about the oil pump.

Oil pick-up pipe would be the next suspect if the filter change doesn't help (enough).

Hmm, I had that with my old BMW and it was the oil filter that had basically collapsed from sitting too long soaked in oil, was restricting the flow. I would look at getting an oil/filter change as soon as possible and if that doesn't help, look at the pick up pipe like Pete suggested above. Next would be oil pump and after that I would honestly look at moving to a thicker oil as the low pressure could have caused damage to the bearings.

 

I had a car that had worn bearings and 5w30 was not thick enough for the extra gaps, would trigger the pressure light. I ran it on 20w50 till I could afford a new car and didn't have any pressure issues.

On 24/10/2024 at 20:17, Kalum0101 said:

... after that I would honestly look at moving to a thicker oil as the low pressure could have caused damage to the bearings.

Doing a change today.

 

Is a thicker oil an option for higher mileage engines anyway? 120k on the clock. Are 'modern engines' picky about oil type? 

Edited 27 October, 20241 yr by LesCM19

2 hours ago, LesCM19 said:

Doing a change today.

 

Is a thicker oil an option for higher mileage engines anyway? 120k on the clock. Are 'modern engines' picky about oil type? 

 

It really depends on the engine. I've had cars run on whatever and not miss a beat, and I've had others that were really picky. I run my 1.4 fabia on Mannol 10w40 semi synthetic. Some say it's cheap crap but it's been running great and it's VW 502 certified. It's a lot quieter on the thicker semi synthetic than it was on the thinner fully synthetic, not too much loss on the MPG either.

 

If you go with something that has VW 502/505 on the label, you shouldn't have any issues.

I'd suggest getting the oil pressure tested.

Did the usual commute... No light so hopefully it was a dirty filter, which it certainly was.

Sounds promising,  which oil did you go with?

Wet and brown?

2 hours ago, LesCM19 said:

Did the usual commute... No light so hopefully it was a dirty filter, which it certainly was.

When did this vehicle last have an oil (or any) service?

5W30 it has that VW 505 code. It's never used much oil, sounds as sweet and is as nippy as ever.