75,000 Mile Maintenance thoughts.
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Member
Joined: Feb 2021
Posts: 188
Likes: 61
From: New Jersey
Forums Most Modified W222
75,000 Mile Maintenance thoughts.
Hey everyone
My car is approaching 75,000 miles and I've been putting together a full on service list saved between eBay and FCP and I wanted to maybe pick some brains on here if what i'm looking to do is not necessarily needed or i'm in the right direction.
I did some searching on here but each case is different so I wanted to ask specifically
Im replacing my rotors front and rear on my car so while i'm at it I was looking to replace the serpentine belt then (3) Idler pulleys and the belt tensioner and while i was browsing on FCP i came across replacing the thermostat and water pump although I have no signs of any issues in that area but at the same time im dropping it off at the mechanic im being preventive and it's not often I go to the mechanic (other than oil changes) so i'm like IDK is this something that could wait 1-2 years
So I ask my fellow mates here what do you think? - Coils, Plugs, filters, Oil, ATF, camshaft sensors etc that's all been changed already at some point.
Its a 2015 and I just paint corrected it (see pics in the sticky thread picture) so im just relaxing home on a saturday catching up on some stuff and this is one of the things i'm thinking about.
Thanks
My car is approaching 75,000 miles and I've been putting together a full on service list saved between eBay and FCP and I wanted to maybe pick some brains on here if what i'm looking to do is not necessarily needed or i'm in the right direction.
I did some searching on here but each case is different so I wanted to ask specifically
Im replacing my rotors front and rear on my car so while i'm at it I was looking to replace the serpentine belt then (3) Idler pulleys and the belt tensioner and while i was browsing on FCP i came across replacing the thermostat and water pump although I have no signs of any issues in that area but at the same time im dropping it off at the mechanic im being preventive and it's not often I go to the mechanic (other than oil changes) so i'm like IDK is this something that could wait 1-2 years
So I ask my fellow mates here what do you think? - Coils, Plugs, filters, Oil, ATF, camshaft sensors etc that's all been changed already at some point.
Its a 2015 and I just paint corrected it (see pics in the sticky thread picture) so im just relaxing home on a saturday catching up on some stuff and this is one of the things i'm thinking about.
Thanks
Senior Member
Joined: Jul 2023
Posts: 296
Likes: 91
S550 V8, CL600 V12, SLK32 AMG
- When you do the brakes, also do the brake hoses and fluid. Not that much extra expense.
- Belt and pulleys are good.
- Thermostat and water pump is good too, but the thermostat is so expensive on these cars.
- Big job though. If you do that, see to replace some of the other coolant hoses. The car is getting older and at some point you wont be able to get the hoses. When you take the water pump off you will most likely break the turbo coolant lines, which is a job in itself.
- The front coolant lines are terrible. Just noting it again.
- All fluids, including diff and transfer case if you have it.
- Transmission fluid and filter
- All filters
- Have a look at the shocks. They might not leak yet, but its something you might want to do at some point. The rubber goes bad and they will leak.
Last edited by waterzap99; Mar 22, 2025 at 05:34 PM.
Senior Member
Joined: Jul 2023
Posts: 296
Likes: 91
S550 V8, CL600 V12, SLK32 AMG
I have had a brake hose fail. Not catastrophically, but it was coming apart.
Also, in time the brake hoses get 'stuff' in them. Probably rust and rubber. I had locked up calipers where I replaced the hoses and they worked again.
Hoses and fluid is cheap. Calipers are super expensive. New fluid and hoses will keep them working for longer.
Hoses are honestly super cheap. You don't have to go OEM. Any good brand new hose is better than a 10 year old OEM hose. Its literally $12 to $15 per hose.
Also, there is a trick to replace them. Keep the cap on the brake reservoir. Use a stick on the brake pedal and the seat to press in the pedal. Just half way is enough to close the valve in the master cylinder.
When you then loosen the brake hoses, very little brake fluid comes out. Few drops at most. Old hose out, new hose on. If you are working on the brakes, its literally 5 min extra per wheel to just reach in there and put a new hose in.
Also, in time the brake hoses get 'stuff' in them. Probably rust and rubber. I had locked up calipers where I replaced the hoses and they worked again.
Hoses and fluid is cheap. Calipers are super expensive. New fluid and hoses will keep them working for longer.
Hoses are honestly super cheap. You don't have to go OEM. Any good brand new hose is better than a 10 year old OEM hose. Its literally $12 to $15 per hose.
Also, there is a trick to replace them. Keep the cap on the brake reservoir. Use a stick on the brake pedal and the seat to press in the pedal. Just half way is enough to close the valve in the master cylinder.
When you then loosen the brake hoses, very little brake fluid comes out. Few drops at most. Old hose out, new hose on. If you are working on the brakes, its literally 5 min extra per wheel to just reach in there and put a new hose in.
Last edited by waterzap99; Mar 23, 2025 at 10:16 AM.
