1.6 HDi 115 Injector Query

[Pete_D60]

Hi Guys,

I’ve been on a search for the cause of what sounds to me like injector knock.
The original injectors were faulty and all 4 were replaced with reconditioned units from WT Diesel by the dealer I bought the car from under warranty.

I was checking the injector addresses with a Topdon ArtiDiag800BT and it mentioned in one of the addressing procedure pop-ups that if the injectors were not a particular part number, a ECU download would be required.
Should have made a note of the number, but it was different from what is on the now fitted injectors which is 50274V05.
Any ideas whether these injectors are likely to need the ECU download or whether they are already compatible?

My VIN is VF7**************[VIN obfuscated, can be read by forum staff]. There doesn’t appear to be any misfiring or rough running, plenty of power, and starting is almost instant, so guessing there’s not too much out of sorts.

Thanks in advance for any assistance you can offer.

Cheers,

Pete

[GiveMeABreak]

Pete, your Engine ECU is a Siemens and was fitted with Siemens injectors, part: 9802448680.

Exchange injectors from Continental were available, part: 1608518380.

I can't help with the specific info on injector coding for this system unfortunately.

[shtu]

I had the same query, with no definitive answer unfortunately. viewtopic.php?t=80488

However, as you can see from the links in the other thread, there are multiple part numbers relating to the same item.

For example, the injectors on mine are all labelled on the injector itself,
50724V05
9674973080
(plus other numbers like the adjustment code.)

Edit,

For example, this listing shows 9802448680 and 9674973080 and 50274V05 as being the same thing, https://www.neobrothers.co.uk/car-parts ... 9802448680

[GiveMeABreak]

Those will be different part numbers, the ones I have used above are the official PSA part numbers for a new injector and the exchange. Can't help with other numbers, as these may well translate into the manufacturer numbers which can be different in many cases.

[Pete_D60]

Thanks Guys,

Well, after another look at the injectors, there is another number beneath the 50274V05 which is 9674973080 which comes up on WTDiesel’s website as a Siemens injector for 1.6 HDI 110 & 115.

Looks like they offer the same injector as a replacement for the 9802448680 so unsure whether I will need an ECU download.

However, I thought I’d reinitialise the injectors and do the 2600>1600 rpm ECU teach in procedure, but after doing the reinitialisation, I noted that engine temp was only reaching 70-72 DegC, not the above 80 DegC to carry it out, so it currently sounds like a bag of spanners.

Probably needs a new thermostat which I’ll sort, but may block a portion of the radiator temporarily to get the temp up above 80 to enable the teach in.

I’ll let you know how it goes.

Cheers,

Pete

[Pete_D60]

Update:

Okay, so partially blanked off the front grille and took the car out for a run with the scanner running live data and got the temp up to 83 DegC.

Carried out the injector replacement protocol on all 4 injectors and took it for a run.
Initially sounded very clattery, but once up to 2600 rpm and coasting down to 1600 rpm it sounded much better. Repeated a couple more times and things sound much improved. I noted that the ”knock” was discernibly less above 80 DegC which I guess makes sense as things start to approach normal operating temperature, but even with the radiator blanked partially, temperature dropped back to 76-78 DegC under normal driving conditions, so looks like the thermostat is stuck wide open.

So, I think before looking for other causes of “knock”, the thermostat needs changing and re-evaluate when the engine is up to normal operating temperature.

With regards to the various injector part numbers noted above 9674973080 & 9802448680, the ECU appears to be controlling the replacements reasonably well, so looks like an ECU download may not be needed in this case.

When I’ve got the thermostat replaced, I’ll post a further update.

[shtu]

Just for "fun", I decided to take a look at the Continental diesel component catalogue,

https://www.continental-aftermarket.com ... s-2022.pdf

Cross-referencing back from the Neo Brothers' link earlier, it's pretty easy to spot that A2C59513556 is the Continental part number. All the C3 and C3 Picasso 1.6 hdi variants in the catalogue use it. As do all the Berlingo 1.6 hdis. And the C4 1.6 hdis. And the C5 1.6 hdis.

In fact, I can't see ANY 1.6 hdi in the book that doesn't use that single Continental part number.

The more I look at this, the more I'm convinced there's a multitude of Citroen numbers that are all the same actual component, because French.

[Pete_D60]

The more I look at this, the more I'm convinced there's a multitude of Citroen numbers that are all the same actual component, because French.

And yet somehow, I find myself not in the least bit surprised!