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I don't think any of the proposed solutions sound very appealing. What's the mileage on one of these blocks going for $10-$20k on eBay? I don't think I'd want a block that has double or tripple the mileage of the car itself. New M177 engines are indeed crazy expensive. Not sure if anyone still remembers the guy from AutoVlog I think his YouTube channel is called, who hydrolocked his first C63 and he was also quoted north of $70k for a new engine so his insurance totaled the car. Looks like somebody bought it and rebuilt it and it was running again.
I personally would ever only consider tuning my car with somebody who matches the new car warranty such as CarBahn or wait until warranty has run its course and all the potential issues have had time to shake out.
Some engines come with a warranty of like 90 days. Here is a 2018 full engine out of an e63s with 600+ hp stock with 6200 miles. It has the bigger turbos and lower compression pistons and is way better than our engine. Put this in and have Kirklandhans put a stock e63 file on your car.
Need to find out if the e63 is a dry sump system but either way you should be able to get this block in your car.
He would probably take 12k for it.
Last edited by skratch77; May 14, 2021 at 02:01 PM.
Some engines come with a warranty of like 90 days. Here is a 2018 full engine out of an e63s with 600+ hp stock with 6200 miles. It has the bigger turbos and lower compression pistons and is way better than our engine. Put this in and have Kirklandhans put a stock e63 file on your car.
Need to find out if the e63 is a dry sump system but either way you should be able to get this block in your car.
He would probably take 12k for it.
As appealing as an E63S engine is, it’s important to consider the 9-speed transmission. I know facelift C63’s use the new 9 speed, but the E63S is setup for AWD and driven front axles.
I don’t think anyone has confirmed that you can bolt a RWD 9-speed trans from the FL C63 to an E63S block. Not saying it can’t be done, but you never know what little things you’ll find and if you go in thinking it’ll be a drop-in and go, he will be very upset when hours of additional labor adds up because the shop need to design and CNC an adapter of some sort to fit the trans.
Personally, if I were in this position, I’d be selling the car and buying a used C63 if you really wanted to stay in this car for longer. Otherwise, drop a good low mileage stock C63 engine in and call it a day.
As appealing as an E63S engine is, it’s important to consider the 9-speed transmission. I know facelift C63’s use the new 9 speed, but the E63S is setup for AWD and driven front axles.
I don’t think anyone has confirmed that you can bolt a RWD 9-speed trans from the FL C63 to an E63S block. Not saying it can’t be done, but you never know what little things you’ll find and if you go in thinking it’ll be a drop-in and go, he will be very upset when hours of additional labor adds up because the shop need to design and CNC an adapter of some sort to fit the trans.
Personally, if I were in this position, I’d be selling the car and buying a used C63 if you really wanted to stay in this car for longer. Otherwise, drop a good low mileage stock C63 engine in and call it a day.
Good call it might have a different bolt pattern. Definitely make sure it will bolt up before buying.
As appealing as an E63S engine is, it’s important to consider the 9-speed transmission. I know facelift C63’s use the new 9 speed, but the E63S is setup for AWD and driven front axles.
I don’t think anyone has confirmed that you can bolt a RWD 9-speed trans from the FL C63 to an E63S block. Not saying it can’t be done, but you never know what little things you’ll find and if you go in thinking it’ll be a drop-in and go, he will be very upset when hours of additional labor adds up because the shop need to design and CNC an adapter of some sort to fit the trans.
Personally, if I were in this position, I’d be selling the car and buying a used C63 if you really wanted to stay in this car for longer. Otherwise, drop a good low mileage stock C63 engine in and call it a day.
The mechanical aspects will probably be the least problem, but the major issue will be the 9-stage TC which is tightly integrated into the ECU's engine torque management. I highly doubt the E63 engine will work in the FL C63 w/o custom software to make it work with the 9-stage TC.
So sorry man! That is stressful. I take my EC tune off anytime I go to dealer, and did you do that? And they still found it? Or did you leave the tune on when it was in.
I just had an issue yesterday on a similar situation, albiet not as serious. I have an AWE switch path exhaust with electronic valves. I installed the wire harness myself and it went over the rear axle boot.
While at dealer they found a cut axle boot leaking grease and said eventually the great axle needs to be replaced.
But since the wire harness was routed over and touching the boot they said no warranty as it caused the issue. The mechanic rerouted my wire harness away from the rear axle boot.
My SA and I are buddies and I'm always nice and not a PITA, I was saying no way that caused it to get cut? But I didn't have a leg to stand on! My cars tuned but again I take it off and it's never come up.
Yesterday when I picked up my car I got some very good unexpected news. I was told to bring car back in a few weeks as I think 🤔 there may be clicking coming from rear of car? 😀🙄👻.
Now there is no “aftermarket” Anything near the Leaking Axle Boot as it's been relocated.
Once they inspect things they should see the boot is leaking due to cut and likely will do the recommended fix which is to replace the axle with a new one under warranty.
The notes for this visit pertaining to wire harness and boot damage have been taken out So there isn't a record of this.
I'm not 100% the wire harness was cause of damage to boot, but if there is anything that's not supposed to be there anywhere around the part that failed, most likely they're going to not honor a warranty item.
My warranty is up in 25 days. So it's not fixed yet, but based in everything it seems I should be ok and get this replaced.
Now I know how bad it feels to have a warranty repair in jeopardy due to a mod and your issue is Major!
I think an axle is a pain to install labor wise and $2,500+ Repair. I am thankful and appreciative and realize I got lucky!
Warranty is up soon so at least ill get this fixed and now I don't have to worry about the tune.
In some ways I wished I sold my C63 when it had 6-12 months of warranty left. Seems it would be easier to sell.
***UPDATE*** Finally picked my car up from the dealership on Friday. I decided not to escalate through MBUSA - ultimately this exercise would be a waste of time and futile anyway. I dropped the car off at my indy shop yesterday evening and this week they're going to remove the engine and get it torn down so we can assess the extent of the damage - scopes only go so far.
After 45 days of mental masturbation, I'm likely rebuilding with forged internals. Yes, I realize I'm following Alice down the rabbit hole but I feel the risks along this path aren't materially different than if I were to buy a used engine originating from a total loss vehicle, like this one:
We'll see, as it all depends on the shape of the block and we won't know until we get in there. If this one isn't salvageable (hard to imagine it's cracked as engine bay isn't smoking and it's not overheating), also entertaining doing an LS swap and making this my dedicated track car for the foreseeable future.
***UPDATE*** Finally picked my car up from the dealership on Friday. I decided not to escalate through MBUSA - ultimately this exercise would be a waste of time and futile anyway. I dropped the car off at my indy shop yesterday evening and this week they're going to remove the engine and get it torn down so we can assess the extent of the damage - scopes only go so far.
After 45 days of mental masturbation, I'm likely rebuilding with forged internals. Yes, I realize I'm following Alice down the rabbit hole but I feel the risks along this path aren't materially different than if I were to buy a used engine originating from a total loss vehicle, like this one:
We'll see, as it all depends on the shape of the block and we won't know until we get in there. If this one isn't salvageable (hard to imagine it's cracked as engine bay isn't smoking and it's not overheating), also entertaining doing an LS swap and making this my dedicated track car for the foreseeable future.
The engine is out and has been torn down. Here are some pictures of the mangled piston rings that were pulled out of the oil pan. You can also see the damage done to the piston and cylinder wall on cylinder 4. The shop found no damage to the other cylinder walls or the pistons.
The next step is getting the block to a performance machinist where they'll determine whether the cylinder can be bored or if the block will need to be sleeved - I'm assuming the latter, which would be a custom order and take some time. Once we know the dimensions of the sleeved cylinders, we can relay to Weistec and get the forged pistons built to spec, which is a ~12-week lead time. She might be ready for VIR again by March 2022!
The engine is out and has been torn down. Here are some pictures of the mangled piston rings that were pulled out of the oil pan. You can also see the damage done to the piston and cylinder wall on cylinder 4. The shop found no damage to the other cylinder walls or the pistons.
The next step is getting the block to a performance machinist where they'll determine whether the cylinder can be bored or if the block will need to be sleeved - I'm assuming the latter, which would be a custom order and take some time. Once we know the dimensions of the sleeved cylinders, we can relay to Weistec and get the forged pistons built to spec, which is a ~12-week lead time. She might be ready for VIR again by March 2022!
Ouch! Yeah, I'm curious what the shop comes back with. I think the block is toast. The NANOSLIDE cylinder wall technology that these engines use requires a special process and honing approach. Don't think an independent shop is setup for that. The process is patented by AMG.
Ouch! Yeah, I'm curious what the shop comes back with. I think the block is toast. The NANOSLIDE cylinder wall technology that these engines use requires a special process and honing approach. Don't think an independent shop is setup for that. The process is patented by AMG.
Yep, I've read all about NANOSLIDE, thus why I know we'll have to go the sleeve route but Darton knows what they're doing. Here's a picture of the engine nearly torn down.
Ouch is right! I hope Curt is in on this one.....I always tell him he looks like Paul Walker without the hair LOL. Good luck to you and thanx for the update.
Yep, I've read all about NANOSLIDE, thus why I know we'll have to go the sleeve route but Darton knows what they're doing. Here's a picture of the engine nearly torn down.
I guess, I'm not sure I'd want one of the cylinders to be sleeved and effectively end up with higher internal friction than the other cylinders. My understanding is that NANOSLIDE has up to 50% less friction than what you will get with a sleeve, so that one cylinder will be down on power having to overcome more friction with each stroke. Curious what that'll do to the balance of the engine.
I guess, I'm not sure I'd want one of the cylinders to be sleeved and effectively end up with higher internal friction than the other cylinders. My understanding is that NANOSLIDE has up to 50% less friction than what you will get with a sleeve, so that one cylinder will be down on power having to overcome more friction with each stroke. Curious what that'll do to the balance of the engine.
I assumed he was going to sleeve the each cylinder. I do not know I have heard of someone only sleeving one cylinder and leaving the balance stock.
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Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
His new place is really awesome 
