Peugeot 3008 Actuator Problem After Clutch Change – Advice Needed

[faisal]

Hello everyone,
I have a Peugeot 3008 1.6 HDi Diesel 2015 and Gearbox Fault” flash for a second, sudden shift to N while braking. I’m getting these fault codes when scan with diagbox:
P0949 — “Clutch Programming Not Finished or Done”
P0868 — “Transmission Fluid Pressure Low”
P0944 — “Hydraulic Pressure Unit Loss of Pressure”

The problem started after the clutch was changed 1 month ago and the mechanic used brake fluid instead of LDS and he did programing with Snap-on. He told me to now buy pump/actuator as this is need to replace so i bought it (please see attached) but now he is saying that it's not compatible because it can not fit. You bought the one which might be fit on the gear box but in your car this fit under the gearbox.

Please if anyone could advice me, thanks in advance

[mickthemaverick]

If he used brake fluid incorrectly then I'd suggest the problem is his fault and he should pay for any replacement parts affected. If the one you bought is wrong then send it back for a refund and leave it to the 'mechanic' to source the correct one.

[Paul-R]

Hang on, am I missing something here? This is the piloted gearbox we're talking about - yes? Then this uses 75/80 GL4 oil in the gearbox and a special oil in the piloting mechanism. Brake fluid and LDS don't enter into the situation at all. Then there's the further possibility that LDS has been put into the brake master cylinder reservoir and/or brake fluid has been put into the power steering if that normally uses LDS. All of these scenarios have serious consequences and needs clarifying.

[faisal]

@mickthemaverick Thanks for your suggestion. I wish I could return the part, but I bought it privately through a friend in Luton. And yes, I’d give the mechanic advice if I could, but most of them don’t take it well, as they believe they know best. If I had done anything wrong myself, I would happily accept the mistake and deal with the cost.

@Paul-R , Could you please help me find a catalogue or any document that lists all the information I need? I’ve checked the owner’s manual several times, but I can’t find anything about the types of fluids and other details.

Finally, if any of you know a good, professional mechanic in the Manchester area who specialises in French cars, please let me know.

manuals.co.uk/peugeot/3008-2015/manual

[Paul-R]

You need to find out from the mechanic exactly what fluids he used and where he put them. This has to be your starting point in case some serious damage has been done. It may be a misunderstanding but you need to ask the question.

As I said above the gearbox itself uses 75/80 GL4 oil and a special oil in the piloting mechanism. The type of oil for that has been specified in other posts here and I will do a search for it when I have the time.

The brake hydraulic system uses DOT4 fluid.

I don't know whether the 3008 has electric or hydraulic power steering assistance. If hydraulic it may be PSF (power steering fluid) or Dexron or even LDS oil (also known as DA oil).

[faisal]

Hi Paul-R, sorry for the typo earlier. I didn’t ask the mechanic which gear oil he put in the gearbox, but he used DOT 4 brake fluid in the actuator instead of LDS oil. Below is the oil I’ve now bought for the actuator.

[Paul-R]

The driver's handbook doesn't give details of fluid specifications. That might be in your service record booklet where you will find the engine oil specification. If you don't have that booklet then then you might get the information from your Peugeot dealer and, with a bit of luck, they will print it out.

The forum used to have access to that kind of information at the moment but if you post your VIN here one of the members who has their own access might see this thread and be able to help you.

Incidentally, I can see from that handbook that the 3008 has hydraulic power steering assistance.

[Paul-R]

Hi Paul-R, sorry for the typo earlier. I didn’t ask the mechanic which gear oil he put in the gearbox, but he used DOT 4 brake fluid in the actuator instead of LDS oil. Below is the oil I’ve now bought for the actuator.

If by actuator you mean the mechanism that changes the gears for you then it does NOT use either DOT4 Brake fluid OR LDS. The piloting mechanism is very particular on the oil that must be used. If either of these have been put in then the mechanism will need draining and the correct oil put in. I'm especially concerned if brake fluid has been used. There might be damage done if you've been driving the car in that condition.

Once the piloting mechanism has been filled with the correct oil then there is a setting up process that needs a Diagbox to guide you through the process. Other high end diagnostic machines might also be able to do this.

[Paul-R]

This post gives the information you need about the piloting mechanism. I don't know how much oil is needed but at £52.25 per litre (2024 price) it isn't cheap.

viewtopic.php?p=807455

Good luck. You're going to need it.

[PaulC5]

There is a Peugeot dealer in Salford you could use for the repairs https://www.stellantisandyou.co.uk/peug ... gLFMvD_BwE

[Paul-R]

The correct oil is available on Ebay for half that price.

https://www.ebay.co.uk/sch/i.html?_nkw= ... to_correct

[RichardW]

DOT 4 will not have done it any good! Any part that is involved in the actuator oil circuit will need replacing - including the clutch slave inside the bell housing, so the box is going to have to come out again.

LDS (or LHM!) is probably OK, I looked up the spec for the selespeed oil in the past and it just appeared to be a 70 weight hydraulic oil. Much was made of incompatibility of LHM and LDS when the C5 first came out, but it used the same strut leak off hoses as the Xantia (and BX...).

[faisal]

This post gives the information you need about the piloting mechanism. I don't know how much oil is needed but at £52.25 per litre (2024 price) it isn't cheap.

viewtopic.php?p=807455

Good luck. You're going to need it.

Thanks Paul, I’ll have a look into this.

The correct oil is available on Ebay for half that price.

https://www.ebay.co.uk/sch/i.html?_nkw= ... to_correct

That’s a bit confusing for me. I’ve spent hours trying to find the correct oil for the gear pump with part number BM.0077947.E (the one I bought) or the correct part number 1608730380 (which I should have bought). From what I found, these gear-shifting actuators use the orange LDS hydraulic oil (PSA S712710), so I bought the Total oil that meets PSA S712710.

But now you are suggesting 9979A4, which is yellow.

There is a Peugeot dealer in Salford you could use for the repairs https://www.stellantisandyou.co.uk/peug ... gLFMvD_BwE

Thanks PaulC5. The only reason I’m trying to avoid the dealer is because they charge more than the car is actually worth.

DOT 4 will not have done it any good! Any part that is involved in the actuator oil circuit will need replacing - including the clutch slave inside the bell housing, so the box is going to have to come out again.

LDS (or LHM!) is probably OK, I looked up the spec for the selespeed oil in the past and it just appeared to be a 70 weight hydraulic oil. Much was made of incompatibility of LHM and LDS when the C5 first came out, but it used the same strut leak off hoses as the Xantia (and BX...).

Ah, I understand now. Thank you for the tip about the clutch slave. I’ll pass all this information on to the mechanic.

[PaulC5]

I understand why people do not use main dealers due to the high labour rates. However, other garages may not have the experience/knowledge/access to procedures to be able to do a job correctly and it can end up costing more. Hopefully in this case once the problems are sorted it will still be cheaper than if a dealer had been used at the start.

[faisal]

Hi, I found a mechanic in Bolton who only works on gearboxes, and he fixed this gearbox actuator issue. But now, after two days, this engine light has suddenly come on right after I filled the tank with diesel. Does anyone know what might be causing this?

For reference, the car has done 104k miles.

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