Help ! oil pressure! Check manual

[Haych]

Recently my car has been showing this red oil pressure sign and to check the owners manual. It starts beeping and when I turn the car off and then back on it goes away.

This only happens when the car is idle and parked up while engine is running. Once it happened when I was driving just creeping in traffic.

I had my car serviced 2 days ago, oil changed and oil filter changed.

It randomly happened again today and I don’t know what it is.

Could it just be a sensor ?


Car is running fine and sounds perfect, it’s only got 69k miles on it.

 

[SuperV8]

What's your engine?
Did it do it before the oil service? What oil did they use?
First step would be to scan it to see what fault codes there are?

 

[Haych]

What's your engine?
Did it do it before the oil service? What oil did they use?
First step would be to scan it to see what fault codes there are?

It done it before atleast 3 times that I can remember. 2 days before the service it happened.

I chose the oil, I bought the 5w30 driv tech engine oil.

I’ll plug in my obd to have a look.

 

[Bluepower]

Check the oil level first. scan for fault codes. If the level is correct and there are no faults in regards to a faulty sensor, you need to have the oil pressure checked manually

 

[SuperV8]

It done it before atleast 3 times that I can remember. 2 days before the service it happened.

I chose the oil, I bought the 5w30 driv tech engine oil.

I’ll plug in my obd to have a look.

What's your engine?

Personally I wouldn't pick this oil- presuming you used: DRIVETEC - Engine Oil LS Pro 5W-30 - 5L ?
it just says;
Meets ACEA C3, API SN, VW 504 00, VW 507 00, MB 229.51, and BMW LL-04 standards.

Oils need to say Approved/Approval - to actually 'meet' and have been tested to the 504/507 requirement - otherwise its just marketing and you have no way of actually knowing if it does actually meet this spec - and the 504 & 507 is quite a high spec to meet.

You'll find all the good oils say Approved/Approval for 504 & 507.

The cheapest oil with 504 & 507 approval I have found is Mannoil 504/507.

Example: Mannoil 504/507

Mobil 1 esp 5w30:

 

[mty12345]

Oil pressure is always at it's lowest at idle, so i imagine it's dropping slightly below the theshold for the switch. The hotter the oil gets, the thinner it gets, so it would also make sense that it does only it when sat stationary. If it was a faulty sensor/wiring i would expect it to be more random.

If it was my car i'd probably either drop the sump and inspect the oil pickup, or maybe go in through the sump plug with a boroscope and see if you can see the pick up. Not sure of the layout of the mk3 engines, but can get a usb-c boroscope for a few quid these days

 

[andy1146]

Okay, I had this after supposedly being serviced by a "VAG specialist". Not saying it is your cause, but this was mine: The fugwits had left off a rubber washer off the oil filter housing assembly. This caused it to set off the oil pressure warning at tickover, but not if oil was cold or revving. I immediately took it back, and they said "must be an oil pressure sensor - we see that a lot". The next day, did it again. I wasn't buying that explanation. Took it to another garage who went through what was done at service, and found the washer missing. fitted new filter housing, and been fine since.

 

[RUM4MO]

The above reply relates to the older chain driven engines like the 1.2TSI.

Can you answer the earlier question "which engine is it?" - doing that would let people offer you a bit more accurate help hopefully.

Edit:- if it is the old well known oil filter issue, then either the wrong filter has been used, caused probably by an ambiguous applications listing, or the correct filter has been used - but the O-ring seal from the previous filter is still on the oil filter housing - so 2 O-ring seals are there.

 

[Haych]

The above reply relates to the older chain driven engines like the 1.2TSI.

Can you answer the earlier question "which engine is it?" - doing that would let people offer you a bit more accurate help hopefully.

Edit:- if it is the old well known oil filter issue, then either the wrong filter has been used, caused probably by an ambiguous applications listing, or the correct filter has been used - but the O-ring seal from the previous filter is still on the oil filter housing - so 2 O-ring seals are there.

The engine is the 1.8tsi, I bought all the parts from GSF after putting my reg in.

 

[Haych]

This is the fault that’s coming up

 

[SuperV8]

The engine is the 1.8tsi, I bought all the parts from GSF after putting my reg in.

Which parts exactly did you buy?

For example, the Blueprint version has a different design to the OEM (Mann) filter - with what looks like black plastic and a yellow seal on one end.

If you brought the Blueprint version, could this have been fitted the wrong way round? so the seal wasn't sealing?

I would still get it scanned for fault codes.

Blueprint vs OEM (which is made by Mann-filter)

 

[andy1146]

Just to clarify the washer missing on mine, I believe it was the one on the end of the rod check valve assembly? [I think, I didn't take it apart, but the guy showed me a breakdown diagram -the long bit that goes down the middle of the filter, has a washer on the end of it]. The washer was missing off the end of it.

 

[Haych]

Which parts exactly did you buy?

For example, the Blueprint version has a different design to the OEM (Mann) filter - with what looks like black plastic and a yellow seal on one end.

If you brought the Blueprint version, could this have been fitted the wrong way round? so the seal wasn't sealing?

I would still get it scanned for fault codes.

Blueprint vs OEM (which is made by Mann-filter)
View attachment 53528 View attachment 53529

i bought the mann filter: MANHU6013Z ive posted the code fault. might need to take it back to the garage that serviced it for them to have a look.

 

[SuperV8]

Just to clarify the washer missing on mine, I believe it was the one on the end of the rod check valve assembly? [I think, I didn't take it apart, but the guy showed me a breakdown diagram -the long bit that goes down the middle of the filter, has a washer on the end of it]. The washer was missing off the end of it.

One of these: 06L 115 678 C

 

[SuperV8]

i bought the mann filter: MANHU6013Z ive posted the code fault. might need to take it back to the garage that serviced it for them to have a look.

Ok, so it's not your filter.

Looks like you have 3x oil pressure switches on your engine.
3 (brown) ,4 (green) ,5 (blue):

There can be a lot of causes for the low oil pressure, hopefully its just one of the switches.
Could also be the oil pressure control valve - or the associated wiring to each, or the previously mentioned o-ring.

 

[nd-photo.nl]

One of these: 06L 115 678 C


View attachment 53533 View attachment 53534

Additional info: This is for facelift, for prefacelift you need:

Partnr 06L115678C

 

[SuperV8]

Additional info: This is for facelift, for prefacelift you need:

Partnr 06L115678C

Seems like C was dropped in May 2017:

ShopDap for example, are showing a supersession from C to Q:

On the 2.0 I can see another supersession - but also including a new filter housing!

Personally would just get some new 0-rings rather than the whole assembly - annoying when they don't list these separately.

 

[Haych]

Ok, so it's not your filter.

Looks like you have 3x oil pressure switches on your engine.
3 (brown) ,4 (green) ,5 (blue):
View attachment 53535

There can be a lot of causes for the low oil pressure, hopefully its just one of the switches.
Could also be the oil pressure control valve - or the associated wiring to each, or the previously mentioned o-ring.

Oh is that not my filter? I just went with that one as it was the one that came up when I put my reg in. As you guys are discussing apart from the pressure switches could it also be the oil filter housing. I called the garage and they’re saying it’s nothing to worry about and it’s just a sensor issue. They said they’ll take a look at it next week. Fingers crossed.

Ps: I have no clue about most of this stuff and how it works, still learning but all of this is very confusing

 

[Haych]

Ok, so it's not your filter.

Looks like you have 3x oil pressure switches on your engine.
3 (brown) ,4 (green) ,5 (blue):
View attachment 53535

There can be a lot of causes for the low oil pressure, hopefully its just one of the switches.
Could also be the oil pressure control valve - or the associated wiring to each, or the previously mentioned o-ring.

Also this was the Sump plug I bought to replace the old one as i heard you can’t re use the same one.

 

[Haych]

Seems like C was dropped in May 2017:


View attachment 53536

ShopDap for example, are showing a supersession from C to Q:

View attachment 53537

On the 2.0 I can see another supersession - but also including a new filter housing!
View attachment 53538

Personally would just get some new 0-rings rather than the whole assembly - annoying when they don't list these separately.

I just realised my oil filter is under the hood, so I can check the o ring myself. If I remove it can I put the same on back in or is it recommended to put an entirely new filter ?