[Carjunky1]

FWIW, McChicago had them in stock when I had them replaced for $3400.

 

[silkcut]

Countermeasure accumulators are rumored countermeasures that were adopted in the 765LT. I heard that story from my 720S rep. I have submitted a written opinion to maclaren so that the 720 can also be equipped with the countermeasure product, and maclaren seems to be positively considering it. My accumulators were replaced free of charge under new car warranty last year. At that time, I heard that not only accumulator parts but also air bleeding from hydraulic piping is important.

Countermeasure accumulators are rumored countermeasures that were adopted in the 765LT. I heard that story from my 720S rep. I have submitted a written opinion to maclaren so that the 720 can also be equipped with the countermeasure product, and maclaren seems to be positively considering it. My accumulators were replaced free of charge under new car warranty last year. At that time, I heard that not only accumulator parts but also air bleeding from hydraulic piping is important.

 

[The Brigand]

See the PDFs for official info.

 

[XPRD]

I have accumulators ready to ship. PM me. Can ship out.

 

[bbeavers]

My 2019 720 has thrown the “Suspension Fault” 3-4 times in the last 6 months or so randomly upon start up, never while on a drive.

The British Tuneup of just locking the car and putting it to sleep usually fixes it, but sometimes I have to drive it a bit before that clears it.

I spoke with James LaPorte at Apex in Chicagoland (north suburbs) and he says it sounds like the symptoms of accumulator failure, at least one or more. James was the Service Manager at McChicago and was also at Lake Forest Sports Cars when the brand first launched, so he’s as knowledgeable as anyone in the country on these cars. He and Doug Foster, the lead tech at McChicago started Apex, both James and Doug are outstanding!

James also confirmed that there was a newly designed accumulator that all 765’s are equipped with.
He advised that the new accumulator is roughly $1,000 more than the old ones (I believe he said per set, not one individual one).

However, since the part is so new, there isn’t sufficient data to show that the new part lasts any longer than the old one. So the question is, do you pay the extra money for something that might not last any longer. Accumulators eventually fail and need to be replaced, with the exception of some varieties that can be refilled/recharged.

Bottom line, he advised waiting a bit before springing for the new part.

That being said, it probably won’t be long before the stock of 720 accumulators get depleted and we’re stuck with using the new 765 accumulators anyway.

 

[The Brigand]

IMHO:

Yes it sounds like accumulators.

Pay the 1000 extra.

 

[Kev the Ref]

Last week started the car to go to the track and got a "suspension fault" on the heads up screen. I called my dealer in Atlanta and they agreed it was the accumulators so they said they'd order the parts first and then I can bring the car in. I called a couple times and they said the parts are showing no expected delivery date and he says they 'redesigned' the part.

After a week they still have no idea when they will get the parts. Figuring this can't be a worldwide problem, I called Charlotte McLaren and the service person there said the only way to get them from his experience is for them to have the car and issue a "technical request" and then the parts are sent. In the meantime they always show in the order system with no arrival date. He said this is because the parts are in high demand and McLaren doesn't want inventory sitting at the dealers.

My service rep told me they used my VIN when they put in the order. Not sure if that is what the Charlotte service manager meant.

Anyone had to do this recently? What was your turnaround time?

My car 650S spider 2017 plate went for several little things & a "B" service. One of those things was the radio on the ISR would not work. Now I did not think it would be a problem! An 8K$ bill 6 weeks later & the "Radio Module" 1500$ on back order!!! The car went in on 18January this year. My Radio Module is due April next year. I live about 130miles from the McLaren factory. Galling!

 

[k3silk]

Last week started the car to go to the track and got a "suspension fault" on the heads up screen. I called my dealer in Atlanta and they agreed it was the accumulators so they said they'd order the parts first and then I can bring the car in. I called a couple times and they said the parts are showing no expected delivery date and he says they 'redesigned' the part.

After a week they still have no idea when they will get the parts. Figuring this can't be a worldwide problem, I called Charlotte McLaren and the service person there said the only way to get them from his experience is for them to have the car and issue a "technical request" and then the parts are sent. In the meantime they always show in the order system with no arrival date. He said this is because the parts are in high demand and McLaren doesn't want inventory sitting at the dealers.

My service rep told me they used my VIN when they put in the order. Not sure if that is what the Charlotte service manager meant.

Anyone had to do this recently? What was your turnaround time?

Is this under warranty if not and looking to buy some I have 4 that I can sell for cheap LMK and just have a shop put them on or just twist them on your self not hard.

 

[Kev the Ref]

My car 650S spider 2017 plate went for several little things & a "B" service. One of those things was the radio on the ISR would not work. Now I did not think it would be a problem! An 8K$ bill 6 weeks later & the "Radio Module" 1500$ on back order!!! The car went in on 18January this year. My Radio Module is due April next year. I live about 130miles from the McLaren factory. Galling!

The service Bill was over £6K (7.5K$) Seat Modules £650 each! Had to have one to pass road worthiness test! It was it's 6th service but it has only done 12.5K miles! I drive it quick but never launched it. Never raced time trialled, hill climbed or track day'd. No they tell me my accumulators are on the way out! Does Lambo's Magneto Rheologic have this problem? When do you quit on a car? When depreciation and none consumable spend reaches the the initial purchase price?

 

[Kev the Ref]

Is this under warranty if not and looking to buy some I have 4 that I can sell for cheap LMK and just have a shop put them on or just twist them on your self not hard.

Excuse my ignorance, what are they and what do the do? What do they accumulate & where does it come from? I've had several other supercars but never had this problem?

 

[The Brigand]

Pressure storage vessels - the pressure comes from a hydraulic fluid pump (like a power steering pump). They are very simple parts that fail over time - there is no way to prevent that happening.

 

[invisiblewave]

Excuse my ignorance, what are they and what do the do? What do they accumulate & where does it come from? I've had several other supercars but never had this problem?

No other super car has McLaren hydraulic suspension. They provide self compensating pressure resistance at each corner.

 

[eMcL]

 

[Roxind]

Around 9:00 mark
Don’t know if that may apply to the super series, though

 

[EMF Audio (McMedics)]

Last week started the car to go to the track and got a "suspension fault" on the heads up screen. I called my dealer in Atlanta and they agreed it was the accumulators so they said they'd order the parts first and then I can bring the car in. I called a couple times and they said the parts are showing no expected delivery date and he says they 'redesigned' the part.

After a week they still have no idea when they will get the parts. Figuring this can't be a worldwide problem, I called Charlotte McLaren and the service person there said the only way to get them from his experience is for them to have the car and issue a "technical request" and then the parts are sent. In the meantime they always show in the order system with no arrival date. He said this is because the parts are in high demand and McLaren doesn't want inventory sitting at the dealers.

My service rep told me they used my VIN when they put in the order. Not sure if that is what the Charlotte service manager meant.

Anyone had to do this recently? What was your turnaround time?

When I don't have accumulators in stock, lately I've had them within a few days. I'm sure both Atlanta and Charlotte are going to charge you thousands over what it would cost for me to do it (I'm in Spartanburg, SC). There is no "redesigned" part, but on 720's you can put the 765 accumulator on it, but it does cost more.

I replaced mine just about 1.5 years ago - took about 3 months to get them (drove until they arrived). Try mcMedics to see if they have a source. Seems like every 2-3 years they will go bad. Hopefully we will find an alternative, as I plan on keeping my 720s for a while, haven't found anything I want to replace it with..

They go bad from road conditions, not time. I do accumulators all the time and I've had people say they were replaced last year (I honestly think they only replaced 2 and charged for 4) and others that lasted many years like my own car. I didn't do mine till this Feb, mine were almost 10 years old and 2 were still good (but weak).

My 2019 720 has thrown the “Suspension Fault” 3-4 times in the last 6 months or so randomly upon start up, never while on a drive.

The British Tuneup of just locking the car and putting it to sleep usually fixes it, but sometimes I have to drive it a bit before that clears it.

I spoke with James LaPorte at Apex in Chicagoland (north suburbs) and he says it sounds like the symptoms of accumulator failure, at least one or more. James was the Service Manager at McChicago and was also at Lake Forest Sports Cars when the brand first launched, so he’s as knowledgeable as anyone in the country on these cars. He and Doug Foster, the lead tech at McChicago started Apex, both James and Doug are outstanding!

James also confirmed that there was a newly designed accumulator that all 765’s are equipped with.
He advised that the new accumulator is roughly $1,000 more than the old ones (I believe he said per set, not one individual one).

However, since the part is so new, there isn’t sufficient data to show that the new part lasts any longer than the old one. So the question is, do you pay the extra money for something that might not last any longer. Accumulators eventually fail and need to be replaced, with the exception of some varieties that can be refilled/recharged.

Bottom line, he advised waiting a bit before springing for the new part.

That being said, it probably won’t be long before the stock of 720 accumulators get depleted and we’re stuck with using the new 765 accumulators anyway.

If he says 765 accumulators are $1,000 more, for the love of god get them from me so I can make my car payment off that 1 sales profit margin.

 

[kgschrader]

When I don't have accumulators in stock, lately I've had them within a few days. I'm sure both Atlanta and Charlotte are going to charge you thousands over what it would cost for me to do it (I'm in Spartanburg, SC). There is no "redesigned" part, but on 720's you can put the 765 accumulator on it, but it does cost more.

They go bad from road conditions, not time. I do accumulators all the time and I've had people say they were replaced last year (I honestly think they only replaced 2 and charged for 4) and others that lasted many years like my own car. I didn't do mine till this Feb, mine were almost 10 years old and 2 were still good (but weak).

If he says 765 accumulators are $1,000 more, for the love of god get them from me so I can make my car payment off that 1 sales profit margin.

I recently had the dreaded 'Suspension Failure! Stop Car!' message on start up. Tried the lock and leave it for the night, but the message still showed up. Took it to the local dealer (car is still under warranty) a couple of days later with the message showing the entire trip. Handed the keys to the service manager and said it is not happy.

He went outside to move the car to the shop and, of course, the message had gone away. Hasn't come back.
So, still driving it.

During the conversation, he did confirm that anytime there are 720S accumulator failures now, they replace them with the 765 version which apparently have a metal bellows as opposed to the 'fabric' version. It requires a small mechanical mounting change and a software change, as noted previously in this thread. McLaren will only supply a replacement set when supplied with the VIN number, according to him.

FWIW,
Kirby

 

[EMF Audio (McMedics)]

I recently had the dreaded 'Suspension Failure! Stop Car!' message on start up. Tried the lock and leave it for the night, but the message still showed up. Took it to the local dealer (car is still under warranty) a couple of days later with the message showing the entire trip. Handed the keys to the service manager and said it is not happy.

He went outside to move the car to the shop and, of course, the message had gone away. Hasn't come back.
So, still driving it.

During the conversation, he did confirm that anytime there are 720S accumulator failures now, they replace them with the 765 version which apparently have a metal bellows as opposed to the 'fabric' version. It requires a small mechanical mounting change and a software change, as noted previously in this thread. McLaren will only supply a replacement set when supplied with the VIN number, according to him.

FWIW,
Kirby

Right, but it's a different compatible part, not a redesigned part. A redesigned part would be the standard for replacement. They went to a "supply only with VIN" just before the last shortage but I still regularly get them to keep in stock or on demand as needed, without a VIN.

 

[restosud]

Right, but it's a different compatible part, not a redesigned part. A redesigned part would be the standard for replacement. They went to a "supply only with VIN" just before the last shortage but I still regularly get them to keep in stock or on demand as needed, without a VIN.

you stock the upgraded models or the original design?
my understanding is it's vin only for the upgraded ones now.

 

[EMF Audio (McMedics)]

you stock the upgraded models or the original design?
my understanding is it's vin only for the upgraded ones now.

I can purchase either at will.

 

[ptown12C]

2021 720S. Got the suspension fault 1 month ago and it went away. The alert came back last week just as it was scheduled for service anyway. Dealer checked it and replaced the accumulators. Get it back today.