Hi,

I am new with panda and I am the owner of a PANDA 4X4 multijet 1.3 Diesel.
Some days ago I faced a problem. The problem is that when the engine is hot the oil pressure (red) led is blinking sometimes. I changed the oil and the oil filter but still the problem exist.

Any idea ?

Most likely to be just a faulty oil pressure switch especially if oil is dripping from the end of it.

don't know where it is on the diesel. Sorry.

Obviously don't drive the car until its sorted as it could be more serious and damaging the engine.

such as loose oil filter, clogged sump filter and so on.

its likely to be here https://www.99rpm.com/fiat/oil-pressure-switch-pipes-1-3-mjd-90hp-punto.html

although I don't have the diesel to confirm

Dear Koaler,

First of all thank you for your replay, today I changed the oil pressure sensor, but the problem exist. Now, technician told me that he have to check oil pump.

as previously said could be oil pressure switch, although i had one in last week with the same fault and the gauze on the oil pick up was blocked and at fault . would be wise to do a oil pressure test as well.

chairik said:

Dear Koaler,

First of all thank you for your replay, today I changed the oil pressure sensor, but the problem exist. Now, technician told me that he have to check oil pump.

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Does it have a DPF fitted ?

What exactly is the DPF and how can i check it?

chairik said:

What exactly is the DPF and how can i check it?

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diesel particulate filter


cars with one also flash the oil warning light in 3 minute cycles when the oil need changing

https://www.fiatforum.com/500/306394-flashing-oil-light-how-reset.html

Now I found out what DBF is, the technician told me that we have to change it. But is quite expensive. Any other solutions???

chairik said:

Now I found out what DBF is, the technician told me that we have to change it. But is quite expensive. Any other solutions???

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When the oil is changed at service. There is a setting in the engine management
( for oil quality )..this needs to be reset.

In English it is called
'OIL DEGRADATION INDEX'

This can cause problems..and is often overlooked by garages

This can be checked with a plug.in device.

We use MultiECUScan software on a laptop.

Charlie

chairik said:

Now I found out what DBF is, the technician told me that we have to change it. But is quite expensive. Any other solutions???

Click to expand...

Also see this thread
https://www.fiatforum.com/500/306394-flashing-oil-light-how-reset-4.html?p=4369692

I doubt you need a a new DPF, it is much more likely the garage who did the last service did not reset it properly.

If sill concerned find aa garage who knows more about Fiat diesels.

Robert G8RPI.

The Diesel Particulate Filter (DPF) can be killed by many things upstream. One of those is the wrong engine oil or leaving it too long before changing.


The question is if the mechanic has not properly reset the DPF ECU has he used the correct oil?

MultiECUScan will have tools to reset the DPF. You will probably need the £50 version.

My concern is that the oil led flashes only when the engine temperature indicator is in the middle and the car works about with 3000rpm, when I release the gas pedal some times the led is off. Also, when I stop the engine and restart it the flashing stops, then after some second if the engine is hot and works with about 3000rpm then the oil led start some time to blinks or stable light. This issues could arise duo to the not reset? Of the system after the service.

if its not a regular blink then it will be poor oil pressure.

was the light coming on before the oil change ?

I saw in youtube, people checking oil pressure with gauge, and there were a few oil pressure gauge for sale on Amazon.

chairik said:

My concern is that the oil led flashes only when the engine temperature indicator is in the middle and the car works about with 3000rpm, when I release the gas pedal some times the led is off. Also, when I stop the engine and restart it the flashing stops, then after some second if the engine is hot and works with about 3000rpm then the oil led start some time to blinks or stable light. This issues could arise duo to the not reset? Of the system after the service.

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This does sound like a faulty oil pressure switch / sensor. The "correct" thing to do is to check the oil pressure with a gauge and if it is OK replace the switch, if pressure is low on gauge further investigation of the engine would be required. However the switch is cheap and easy to change compared to driving around with a gauge attached so I suggest you buy and fit a new switch/sensor and see if that fixes the fault.

It could also be that the insulation on the wire to the switch is chafed and it is shorting to ground. So have a good look at the wire and harness when installing th new switch.


Robert G8RPI.

From how you're describing this I think it less likely that it's because the ECU wasn't reset correctly after your oil change because you would be getting symptoms all the time. I worked a lot with older style diesels but I'm not so familiar with common rail and DPFs - and don't really want to be! However I do know this ecu oil reset is very important. All sorts of mayhem can result from not doing it including repeated attempts at regens which will lead to oil dilution - with potentially disastrous results.

So the next most likely is that the oil pressure switch has failed/is in the process of failing. Often it's the diaphragm inside it which ruptures and often, as a result, you'll see some oil leaking out of the electrical connections on the switch itself if this has happened - but not always. Have a look at the connections and try "wiggling" the wires with the engine running (with someone watching the light) to see if it flickers/lights up. As has previously been suggested, an oil pressure switch, in the grand scheme of things, is cheap. So it's common practice to try a new one in this sort of situation. Personally I would be wanting to check the actual oil pressure just to reassure myself there was no deeper problem. This is not that difficult to do if you can get your hands on a gauge. (I'm not familiar with this engine but my Haynes Panda manual shows it screwed into the left hand end of the cylinder head so easy enough to access - some can be absolutely diabolical to get at).

I hope you realise you need to do this "the day before yesterday". If it's only a failed switch (not all that unusual given your symptoms) a new switch will sort it and no mechanical damage will have been done. If however, the light is coming on due to genuinely low oil pressure, the risk of damage is high. If there is still oil flowing continuously but at a lower pressure than the switch is set to trigger (maybe a partially blocked sump strainer?) you might get away with it. If however the oil supply is actually interrupted with air or just no oil flow for short periods it's very likely that damage will already have been done.

Anyway I wish you good luck and hope, whatever it turns out to be, it doesn't cost too much.

Regards
Jock

Plain bearings in the bottom end and camshaft have a soft metal surface which will rip away if used without oil. You can try a new oil pump but but don't hold your breath on the engine lasting very long.

Regards oil dilution by excess fuel this is often terminal but not always. I had a VW TDI-90 with a strange fault. It behaved at constant speed as if someone was pulling the handbrake on. Various tests by professionals found nothing. One day I came home to see a huge oil stain on the driveway. Who knows how my (now ex) Mrs did not notice. The engine block was covered in oil and I could smell diesel. I changed the oil and needed 2 (count em) drip trays. Cracking the injector feed pipes showed a faulty injector. I replaced that and all was well again.

The engine survived so diesel must be more lubricious than we would think and there was never an oil pressure warning so that would have helped it to cope.

So I am back again, without solution.

Once again I would like to describe the problem, hopping for a solution. My car was stuck in snow for about 2 hours, the engine worked that 2 hours. When I unstucked the car from the snow I noticed that the oil led started blinking randomly while the engine is hot (the temperature indicator is in the middle). Since then I have changed the oil, the oil filter and the fuel filter. But the led did not stop blinking. After that I changed the oil pressure switch. Nothing happened. Today I cleaned the DBF. Nothing happened. All the checks and repairs were made by professionals but no solution.

At the end I got the perfect solution from a professional "change engine or entire engine repair" each one coast approximately 1200€.

I desperat I don't know where to go and what to do.

chairik said:

So I am back again, without solution.

Once again I would like to describe the problem, hopping for a solution. My car was stuck in snow for about 2 hours, the engine worked that 2 hours. When I unstucked the car from the snow I noticed that the oil led started blinking randomly while the engine is hot (the temperature indicator is in the middle). Since then I have changed the oil, the oil filter and the fuel filter. But the led did not stop blinking. After that I changed the oil pressure switch. Nothing happened. Today I cleaned the DBF. Nothing happened. All the checks and repairs were made by professionals but no solution.

At the end I got the perfect solution from a professional "change engine or entire engine repair" each one coast approximately 1200€.

I desperat I don't know where to go and what to do.

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Did these "professionals" check the oil pressure with a guage? Did they read the fault codes with a proper machine?
As has been said before checking the oil pressure independently of the pressure switch is te most importan thing to do.

You need to find a new garage, the current one is wasting your money.

Did you slide or crashhttps://www.fiatforum.com/editpost.php?do=editpost&p=4469038 into a snow bank? If so you may have damgaed the wiring.

Robert G8RPI.