its the same part no as the Ferrari part, you just have to select Maserati as your make and it’s 20-40% cheaper, depending on which site. part no: 181205 (left), 181204 (right), and you will want new gaskets 2 x 181681.
I very recently changed both fuel pumps on my 612, and they are the exact same pump that is used on the 599, if I am not mistaken. I bought these pumps from different vendors, as I had only planned on changing the left pump. I later decided to change the right one also. Both new pumps are from Bosch and were packaged in generic "Bosch" boxes. They are the upgraded pumps with the yellow tops. I bought the first one (left side pump) from Amazon: https://www.amazon.com/dp/B00BHGAZV0?ref=ppx_yo2ov_dt_b_fed_asin_title Please note that the description says "Feed Unit Right". This is an incorrect description... the pump is a direct replacement for the left-side pump (has no float-level arm) on 599 and 612. And the right side pump from eBay: https://www.ebay.com/itm/154210794781 Both of these pumps came from Latvia and were delivered in less than 7 days to Florida, USA. They may have even came from the same vendor, but I'm not sure. I thought the price was very reasonable for each, but the better deal was certainly the purchase from eBay. Neither pump came with the rubber o-ring. I sourced these from Ricambi. Neither pump came with the plastic ring-nut, either. I bought this tool from eBay to help with the removal/installation. I didn't want to risk breaking the original ring-nut on either pump. The tool worked well and allowed me to apply the proper torque value as found in the WSM. https://www.ebay.com/itm/204945187034 I have driven the car a little since the replacement and it seems to run just as good as ever. Pump replacement is a difficult job on the 612!
That’s great. Looks like the Bosch direct part no: 0580313090 for the right side. My guess is for left: 0580313091.
For the 599, if the right pump is bad, would you smell gas in the trunk, cabin or around the rear passenger wheel arch?
for mine, I had a right pump failure. I generally Noticed the smell of fuel in the garage outside the car, and it was faintly noticeable in the cabin as well.
Ugg.... Now I have the fuel pump issue - I think. Strong smell of gas... I have not been driving the car. I filled up the car no issues. Went for a quick drive the next day , windows down since it was so nice, and smelled gas when in traffic... but the smell kept following me ... so then when I got out - very strong gas smell. Drove it home and its been there ever since. No fuel on the floor... and does not smell that bad when in the car, but outside by drivers side -its a strong smell. - Assuming its one or both pumps? So how do you take the parcel shelf off? and remove the bottom leather behind the seats?
Just in case you guys are wondering...It's been maybe 3 weeks since I changed both pumps in my 612, and I've been driving the car a lot lately. The fuel smell went away immediately once I changed the pumps and has not returned. I never had fuel puddling on the ground or any visible leakage for that matter, but had a strong and REALLY annoying fuel smell in the interior. Both of my pumps had "2006" marked on them so I know they were the originals. My car has been well cared-for so I would assume that the average "service life" of these original (white plastic top) fuel pumps is somewhere around 18 years give or take a few. If your car fits that criteria, I suggest you prepare to do this job sooner rather than later. You will certainly feel better once it's done!
So this weekend Finally got around to looking at what is causing the fuel smell... its the passengers side pump... leaking from the top. So we pumped out about 25Gal of gas... left just enough in to move the car around. Ordered parts and hopefully next week get it all buttoned up. taking the shelf off was not a problem... much easier than I thought. Getting the pumps out while keeping the seats in the car seem to be an issue ... and not sure how to disconnect the seatbelt from the seats.. ugg...
Seems like the time limit for the shelf life on the original plastic tops had a big failure rate for 2024
This is what I have so far. The pass. side pump - top was soaked in fuel, and was a slow leak. I'm out of town this week, so it will be next week before we can do the pumps. the Drivers side is bone dry but going to replace it as well. just to be sure. About $1200 in parts from Maranello in the UK - all pumps, gaskets etc. Image Unavailable, Please Login
So as a follow up, the 599, is back running on two new pumps. NO gas smell. My mechanic came and did a house call, which was great, and while I would never have attempted it on my own, I did learn a lot: 1. I now know how to pump all the fuel out of the car = I had filled it up, and had to pump about 25 Gal of gas out of the car- about 35 Min jumpering the low pressure relay... 2. It was easy to get to the fuel pumps, but awkward with the seats in. Taking the seats out is great idea, but a real PITA 3. the high pressure hoses on the pumps retain a lot of pressure even when you have depressurized the system... so have lots of towels there... gas in the mouth is not a great taste and it takes about 30 hours for the smell to abate from your nose. 4. the Huge plastic ring that sits holds the pumps in place is a real PITA - not super hard but again awkward to get at. The pumps are spring loaded... so that added to the fun of installing them into the metal cups on the bottom of the tank. 5. When looking into your pristine gas tank, - don't breath... the lightheaded feeling from just a couple cups of gas and fumes is pretty strong... So the process is: 1. Remove the seats - give you so much more room. We did not take the seat belt of, just put the seat next to the car. 2. Remove the parcel shelf- it is in with clips that comes out easy. Tape off the luggage straps, they are firmly attached. 3. cover the interior with large lawn leaf bags, heavy ply, and use lots of shop towels to capture any fuel. 4. Pump out all remaining fuel. Even once its all out there will be about a gal or 2 in the big plastic cup at the bottom of the tank. you have to tilt the cup to get it out of the car, and you will spill fuel. I used a bag, and cloth to capture it all. once out side, at least a 1/2 quart of fuel came poring out. 5. be very careful on removing the hoses from the top of the tank. they have a plastic clip that if you damage... the tank is coming out. the drivers side has a t link on it, and will try to interfere with getting the new pump back in. 6. the large plastic retaining nuts are hard to get going, we used a hammer and blunt chisel/ screwdriver to get them off, small taps, easy going and then come off, YOU have to push the pump down at this point to take the nut off. 7. installing the pumps is pretty straight forward, you have to align with an indent on the top of the tank and the metal ring at the bottom of the tank. The pumps will fit in place once situated right., have one person put on the new o ring, and large nut, and the other push down on the top of the pump with a rubber mallet handle, to keep in place, feed in the nut and tighten using the same chisel and hammer. connecting the electrics and hose is pretty easy. make sure the hose snaps into place. 8 Refuel and check that pumps work by jumpering the relay first, then when dry, you can start the car. Reverse of the above to put back together. It was about 1/2 a day to do it all. I guess if you are young and nimble you don't need to take the seats out, but that does not give a lot of room to maneuver... Image Unavailable, Please Login Image Unavailable, Please Login
