[JeFizz]

^^Excellent. Oh, you want paid? How about a tip? Stay in school.

"Don't eat yellow snow" would have been more appropriate.

 

[JeFizz]

I'm going to figure that all out. Pull battery negative, and then do continuity tests of the wires going from the relay to the intercooler pump. Wish I could get paid for my time. LOL

Well I never got around to digging into the relay wiring, other vehicle maintenance came up, so I got busy.

I received the Panasonic relay, and I have to say, it looks really nice. It's potted, so will do much better in harsh environments and will be less likely to have the contacts, internal and external, corrode. The panasonic is obviosly smaller, but the contacts are all in the same position and size as the others, so it will fit without an issue.

Left to right:

Alfa Romeo Part # 06106094AA-001 (30A, 82.6Ω) - - | - - GM Part # 96484304 (35A, 90Ω) - - | - - Panasonic CM1A-12V (35A, 96.5Ω)

 

[JeFizz]

I decided to take some physical measurements of the relay contacts...

Examples of measurements. I did not take terminal height measurements.

Original OEM (OE 1, from car):
Coil terminals: 4.79mm x .80mm
Switched terminal: 6.32mm x .80mm

Updated OEM (OE 2):
Coil terminals: 4.79mm x .76mm
Switched terminal: 6.30mm x .75mm

GM:
Coil terminals: 4.73mm x .79mm
Switched terminal: 6.31mm x .79mm

Panasonic:
Coil terminals: 4.79mm x .81mm
Switched terminal: 6.28mm x .81mm

*updated with pics

 

[AlfaAndy]

@JeFizz, perhaps you could remove the covers and compare, and post images, of the innards.

 

[JeFizz]

@JeFizz, perhaps you could remove the covers and compare, and post images, of the innards.

Yep, when I get some time, I'll pull apart the passenger front wheel well and yank that harness and all of that out so I can get to the wiring. In my car, the closest one to the engine is the starter relay, I believe. I pulled it, and the car would not crank over. Pulling the second one had no effect on starting the engine. Due to space constraints pulling them from the top, I could only get to those two relays. I'll dig in more and get some wire colors and whatnot.

 

[AlfaAndy]

@JeFizz , I mean pull the plastic caps off the relays themselves to see what the inside of the relays (the contact points) look like.

 

[JeFizz]

@JeFizz , I mean pull the plastic caps off the relays themselves to see what the inside of the relays (the contact points) look like.

oh, well, the OEM has already been seen, but I can yank all apart except for the Panasonic one due to its potting.

 

[JeFizz]

@JeFizz , I mean pull the plastic caps off the relays themselves to see what the inside of the relays (the contact points) look like.

oh, well, the OEM has already been seen, but I can yank all apart except for the Panasonic one due to its potting.

Post #43 updated with pics.

 

[Envain]

Not sure if my turbo O ring going bad has anything to do with any of these relays but I just now swapped out the R1B

Noticed a different part number on my OEM one

 

[joaoernestoadv]

My testimony:

After a lot of searching here, I bought the GM relay because it was the fastest delivery.

I installed it on the 24th of September, without major problems because the information here on the forum is very accurate.

All good.

Today I have the error code P-2510 which, apparently, has a connection with the starter relay.

My question is: if this could have been caused by a different amperage because the original relay is 30amp and the GM 35?

 

[JeFizz]

My testimony:

After a lot of searching here, I bought the GM relay because it was the fastest delivery.

I installed it on the 24th of September, without major problems because the information here on the forum is very accurate.

All good.

Today I have the error code P-2510 which, apparently, has a connection with the starter relay.

My question is: if this could have been caused by a different amperage because the original relay is 30amp and the GM 35?

No, that rating is the amperage that the relay can handle.

 

[maxpower]

To add some more confusion, I placed an order from the mopar estore for an updated 06106094AA relay and a few of the 06106093AA since they were 1/6th the price to have a few spares ($6 vs $35). The dealer contacted me and told me the opposite that 094AA was superseded by 093AA and I could only order 093AA so I did. I received them and they are the same omron ones that came with the car, each in a "genuine part" box with the official italy label, but with a date code of 2019. I saw a pic above of the 06106094AA made in 2018, so they must have made both for a while. I wonder if the "superseded" status varies by vehicle and both are still being supplied. I was expecting to hear the opposite that 093AA wasn't available anymore and could only get 094AA.

 

[wbclassics]

Just had the dying starter relay issue happen on a long distance trip in my wife's Giulia (~67000 miles). I was prepared for this and had bought a replacement relay from Alfissimo over a year ago to keep on hand... but that doesn't do you any good when you keep it in your nice warm well equiped home workshop 3 states away from where you currently are.

So I tracked down the NAPA AR6034 at a NAPA store in the eastern shore of Maryland on Sunday. I installed the NAPA relay on Monday morning. If you are willing to sacrifice comfort, skin and blood, then you can manage to get to the relay cover and relay through the narrow triangular opening in the engine bay. I'm a pretty decent sized guy, and I had 1/4" deep impressions, in addition to missing skin and blood, left in my forearms from squeezing both of my arms into that opening a good hour after I had completed the relay swap. I did end up having to pull the passenger wheel and partially undoing the inner fender liner, just enough to reach my hand in and pick up both the relay cover and relay that I dropped during my first attempt at cover removal and relay insertion.

So NAPA AR6034 works fine, although I was a bit skeptical because no one has mentioned the amp rating on this relay and the box/relay also doesn't have it printed anywhere either. Two of the terminals on the NAPA unit were copper plated, so that's at least a good sign they didn't skimp on quality.

OE Alfa spare going into the glove box now, so it rides around with the car.

 

[migliori]

I'm planning on pulling T17 to disable my headlight washers. For everyone replacing relays - can I pull the relay without disconnecting battery negative? Or are you pulling the negative every time?

 

[jwq2]

I'm planning on pulling T17 to disable my headlight washers. For everyone replacing relays - can I pull the relay without disconnecting battery negative? Or are you pulling the negative every time?

No, just remove it. It's just a relay ......

 

[maxpower]

Sometimes you just need to remove and reseat the starter relay to allow it to start again if you are stranded without a spare. Be sure to disable start/stop though.
It is possible to unclick and remove the cover with 1 hand (after practice ), but yes need to be careful with the cap or relay on the way up. Easy to bump and drop.

 

[Alan]

Just wanted to say thank you to all those who posted info on this thread about the relays, how to change them and alternative part numbers. I replaced all 5 of mine with the sealed Panasonic ones and they work well. It didn't resolve my error codes but I can confirm that the ones listed above work and the price is right from Mouser $4.78 each. I do wonder whether the fact that they are shorter means the outer water resistant cap won't hold them down but they seem to be held securely by their connectors.

 

[Ash82]

1st post here, but been lurking for a while. After seeing the posts here, I’ve had the intercooler water pump fault code come up twice in about 2 weeks - clearing these with MES. Am I correct in thinking that if my water pump wasn’t working this would be an issue that would happen all the time and not just sporadically?
I’ve just replaced all (5) relays within the wheel arch mentioned here, so hoping this will sort it?
I’m also having the heated rear window relay fault code come up too on a few occasions, which I have the relay for, just got to get round to it.
What are the other relays in the wheel arch that I have replaced by the way?
The ones in place were the old mopar type and I’ve replaced with the new mopar type.
Car is a 2017 Veloce 280 U.K. right hand drive car.
Thanks for all who have posted here, helped me enormously - well, hopefully!

 

[aoussoren]

Been lurking here too for some time.
Think we are all got the same issue's sooner or later.

Replaced all the 10 relays in my Giulia today.
Mine is 2.0t 200hp 2017-02

Was a bit confusing, didnt have the relay "tree" as posted here, but a relay box.
What i can find online is that the factory put a Stelvio relay box in my car 😁.

Not surprised, been doing Alfa's since the 75's i owned.

But it can be helpfull. Dont think im the only one.

 

[lockem]

Well I never got around to digging into the relay wiring, other vehicle maintenance came up, so I got busy.

I received the Panasonic relay, and I have to say, it looks really nice. It's potted, so will do much better in harsh environments and will be less likely to have the contacts, internal and external, corrode. The panasonic is obviosly smaller, but the contacts are all in the same position and size as the others, so it will fit without an issue.

Left to right:

Alfa Romeo Part # 06106094AA-001 (30A, 82.6Ω) - - | - - GM Part # 96484304 (35A, 90Ω) - - | - - Panasonic CM1A-12V (35A, 96.5Ω)

The usual causes of mechanical relay problems are contacts melting, contacts pitting (transfer of material from one side to the other), and wear on the contact arm pivot. Contacts melting (usually stuck closed) is the result of overloading the relay. Contacts pitting can be from poor relay design (poor material selection and/or shape) or from too much capacitance or inductance in the load*. Wear on the contact arm can be from excessively frequent activation or from bad design (use of wear prone materials).

The relay has to be exposed to a lot of water before water becomes an issue. OTOH, I have seen under hood mounted potted devices fail due to the potting shrinking and tearing components off of a circuit board (wheel size compensator for my pickup truck). Thus, I am not real impressed by the potting of the Panasonic relay.

Of course soldered/welded/crimped electrical joints can also fail, as can the activation coil. These are more manufacturing flaws than design flaws.

Changes in the coil resistance have the potential to cause errors to be thrown.

* example: for old school points and condenser ignition, if the "condenser" (capacitor) is omitted the points will erode very quickly. The condenser counteracts the high inductance of the ignition coil in order to reduce arcing between the points.