Merry Christmas everyone! I am currently working on my 308 to replace the shift shaft seals that are leaking. Obviously to do this, I have to remove the shift linkage, and the thought crossed my mind... "While I am here.... maybe I should do the motor mounts that I think are original". I am not having any issues that I can recognize, but I do think the mounts may be original. I just noticed that the replacement mounts are nearly $1300 for the set. Obviously a lot of money to spend for something that is not broken. Any thoughts on this? Is there a noticeable difference when they are replaced? Is there a cheaper option? 84 308 QV if it matters. Thanks. Appreciate your thoughts.
I can't comment on whether you should / shouldn't do it, but Superformance has the mounts for a bit less (£164 each = about $206 each).
From an old thread, there is not much in there... Rubber, some compressed steel wool and a spring. Image Unavailable, Please Login It is not obvious to me how this mount works. Seems of course to be designed for vibration damping, but if the rubber deteriorated you would have vibration, but I don't think the engine would actually sag down? Maybe things would move around laterally? Presumably a new mount would damp better than one with an old hardened rubber donought. The spring may well compress over long periods of time, also reducing some damping quality, although it is not clear to me exactly what function this spring has in there. If you didn't have any vibrations, leaving it be seems a viable option. One has to disconnect the shift shaft, the torque strut on the engine, and support the engine on a jack to support it while removing the mounts. Not really a "while in there job" other than having to undue the shift shaft bolt if you did it as a separate job. But I get wanting to replace anything with rubber in it just from the age of the car. On the other hand, at my cottage there is an old spoke truck wheel from around 920 with a tire on it, baking in the sun for 100 years and the tire still holds its air! This mount rubber is not exposed to elements. I think the torque strut bushings on the cam cover to body would be a more likely vibration damper to deteriorate from the engine heat and cause more vibration.
I think Mercedes should have learned something from Ferrari back in the 80's and 90's with regards to engine mounts. Especially with the W124's.
Mercedes mounts have been crap since the 50's. And even some of the old name brand German mounts are really terrible now. We have an E55. At about 120,000 I put mounts in it. In 2 years and about 10,000 miles those mounts were destroyed.
I have a 92 400E and a 94 E500. They go thru mounts like nothing you can imagine. I haven't had quite the same problem with my 93 300CE Cab but it's a six so I'm not sure if that has anything to do with it.
Thank you. All great thoughts. There isn't really much there is there. I guess I will leave them for now and come back later if necessary.
@tobygaff - Another option: https://www.ferrarichat.com/forum/threads/i-just-put-solid-motor-mounts-on-my-308.323811/ And links to the HE product: https://www.hillengineering.co.uk/engine-related/engine-mounts/sem-308 - Dave
Not on my 328, but on my Lancia Montecarlo. 10 years ago when I bought it I found that there was a lateral vibration when accelerating and so I put new engine mounts under it! I don't know it by heart, but if anyone is interested I can find the American manufacturer/supplier's name. they had 2 types. Normal and racing......I bought the racing.........what a mistake. Damping is of course excellent, but it is constantly vibrating with the buttocks. 10,000 km further, still the same
Great cars.............strangly my girl friend preferce to drive the Monte instead of the 328.......could be the " vibrating with the buttocks"
Thanks Dave, I have seen those and considered them. I do love the agressive feel of solid motor mounts, but was not sure if it was too much on this car. I am definitely considering it. Maybe I need to find someone who tried them and didn't like them and took them out.
