How to get a smoother ride from your E300-Luxury Model
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S450-4matic
How to get a smoother ride from your E300-Luxury Model
I purchased a 2018 E300-4matic about 3 months ago with Goodyear Runflat tires. The inflation sticker on the fuel door said that inflation should be 32psi front & rear, which I adjusted as the sticker advised. Well, the ride was loud and bouncy and just awful, it road like an old pickup truck with bad springs. Well I was quite disappointed to put it mildly. I paid a visit to my dealers tire dept. and I was told to keep the tires inflated to the maximum inflation pressure shown on the fuel filler door which is 33psi front and 39psi Rear. Sure enough the ride smoothed out and became quite pleasant, almost as smooth as an S class, the improvement was definitely noticeable. I inquired why such a big and positive difference. I was told that Runflat tires by default have much stiffer side ply walls which allow them to run for an additional 30 miles or so with a puncture, which is fine if you have a flat tire, but if you don’t then you can expect a tire that will run fine on a straight away but as soon as you make a turn in either direction then you have a tire that has no give in its’ sidewall, hence it will run like a non-neumatic or solid rubber tire like those on a tricycle and if all your driving is done in the city or suburbs then you’ll be turning left or right most of the time. So if you have Runflat tires give this fix a try, it worked well for me.
Doc
Doc
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2021 M550i
it should be 32 all around. and also very interesting is that ive driven the sport and luxury back to back and there is no real noticeable difference in the suspension. In the C class the sport and luxury is a night and day difference....
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I often switch between 32 all around and 33/39 when I have a heavy load (every week or 2). The 32 all around provides the best ride for a light load (1 or 2 people). I use the higher pressures when carrying sports equipment (800+ lbs.) in the trunk.
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From: NorCal
2015 ML350+2025 E350
I keep my tires set above the recommended 32 psi all around, and find it more comfortable. Obviously depends on many factors...springs, airbags, run flat or low profile tires, road conditions, more or less aggressive driving style, etc.
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From: Eastern Massachusetts
2021 E450, 2020 C43, 2015 C300, 2007 C280
See my reply to riamga today on the thread "pirelli run flat tires?" On my C300 Luxury suspension, improvement continues up to 40 PSI. (That's what my gas flap sticker says too! However, my misaligned gas flap had to be replaced, and maybe the dealer replaced it with an AMG part. Well, what's good for an AMG is good for me. The main differences with an AMG are not in the suspension.)
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Ok, you've got my curiosity. 800 lbs?
I keep my tires set above the recommended 32 psi all around, and find it more comfortable. Obviously depends on many factors...springs, airbags, run flat or low profile tires, road conditions, more or less aggressive driving style, etc.
I keep my tires set above the recommended 32 psi all around, and find it more comfortable. Obviously depends on many factors...springs, airbags, run flat or low profile tires, road conditions, more or less aggressive driving style, etc.
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2017 mercedes GLE 43 coupe
..." was told to keep the tires inflated to the maximum inflation pressure shown on the fuel filler door which is 33psi front and 39psi Rear. Sure enough the ride smoothed out and became quite pleasant,.."
I'm trying in my mind to figure out why over inflating the rear tires would give you a smoother ride.
If run-flat tires give a rougher ride due to stiff sidewalls ,then I would think stiffening the tire more with extra air pressure would just exasperate that.
I'm trying in my mind to figure out why over inflating the rear tires would give you a smoother ride.
If run-flat tires give a rougher ride due to stiff sidewalls ,then I would think stiffening the tire more with extra air pressure would just exasperate that.
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From: Perth Western Australia
2017 W213
When you see something like this you just have to call it out for what it is..
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I only drive a couple of miles with them in the car. If I had a truck I'd use it. I'm trying to sell them at a Saturday market. Maybe this week.
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Joined: May 2014
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From: Perth Western Australia
2017 W213
The weights are actually a bit more than 800 pounds consisting of a 352 pound kettlebell set and a 500 pound plate set. You probably don't know what a kettlebell is so here is a link. Believe what you want. I bet you couldn't lift the 40kg kettlebell let alone swing it into the trunk.
i would love to see you load your boot up and then go down the street.
Mario how about a few photos of a your loaded up trunk and the car going down your street.
You are right about one thing i have never in my life seen or lifted a kettlebell.
My back is not 100% fit only because i worked for 26 years on a big fishing boat and the constant pounding seas has stuff my back up i will never lift one as now days i try to be careful.
Well Mr Andretti keep lifting your weights and do be careful to look after your back as you are putting the 800+lbs in your boot.
Cheers from the land down under.
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From: Cincinnati
2010 E350 4Matic
I purchased a 2018 E300-4matic about 3 months ago with Goodyear Runflat tires. The inflation sticker on the fuel door said that inflation should be 32psi front & rear, which I adjusted as the sticker advised. Well, the ride was loud and bouncy and just awful, it road like an old pickup truck with bad springs. Well I was quite disappointed to put it mildly. I paid a visit to my dealers tire dept. and I was told to keep the tires inflated to the maximum inflation pressure shown on the fuel filler door which is 33psi front and 39psi Rear. Sure enough the ride smoothed out and became quite pleasant, almost as smooth as an S class, the improvement was definitely noticeable. I inquired why such a big and positive difference. I was told that Runflat tires by default have much stiffer side ply walls which allow them to run for an additional 30 miles or so with a puncture, which is fine if you have a flat tire, but if you don’t then you can expect a tire that will run fine on a straight away but as soon as you make a turn in either direction then you have a tire that has no give in its’ sidewall, hence it will run like a non-neumatic or solid rubber tire like those on a tricycle and if all your driving is done in the city or suburbs then you’ll be turning left or right most of the time. So if you have Runflat tires give this fix a try, it worked well for me.
Doc
Doc
This would be a first that increasing the tire pressure improved the ride. I was running higher pressures on my W212 because I hadn't reset them for the hotter weather and rode like crap until I lowered them to the spec on the door.
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Past 03 SL500,03 C240, 07 E350, 07 ML350, 10 ML350,11&14 E350 X2 2017 E300, 2017 C350e & 2000 S500
Overall this cars suspension is crap compared to the C-Class, Ive driven many loaners from C300 Convertible to 2015-18 sedan and they all drove better then the E, my C350E that weighs more then the E300 drives better. Also, the GLC is very smooth even though its a mini SUV with those huge tires. My dealer recently dropped the air pressure down to 32 and it drives worse when I had it at 32-39. Cant wait to get rid of this car.
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2021 M550i
Overall this cars suspension is crap compared to the C-Class, Ive driven many loaners from C300 Convertible to 2015-18 sedan and they all drove better then the E, my C350E that weighs more then the E300 drives better. Also, the GLC is very smooth even though its a mini SUV with those huge tires. My dealer recently dropped the air pressure down to 32 and it drives worse when I had it at 32-39. Cant wait to get rid of this car.
I complete agree, not even asking for a sporty ride - it just has no character at all. Not very Benz like.
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Past 03 SL500,03 C240, 07 E350, 07 ML350, 10 ML350,11&14 E350 X2 2017 E300, 2017 C350e & 2000 S500
The interesting thing is, I had a E400 coupe loaner for few weeks and that was like driving a completely different car, it felt like a true benz. Dont know if it was the extra weight of the engine smoothing it out or what they did to the suspension. Smooth as silk and drove like a true benz. The engine purred as well.
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y E300 ride is superior to the C Class models. That said, I tried the higher tire pressures but they made the ride much harder than I like. I'll stick with the 32 psi on all four corners.
BTW - I sold the weights ($1 per pound) so I don't have to transport them to the Saturday market anymore.
BTW - I sold the weights ($1 per pound) so I don't have to transport them to the Saturday market anymore.
Member
Joined: May 2014
Posts: 128
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From: Perth Western Australia
2017 W213
ua549
I sold the weights ($1 per pound) so I don't have to transport them to the Saturday market anymore.[/QUOTE]
Hahahahahahahahahahaha................. Mario Andretti read your answer again .........hahahahahahahahahahahahaha
Hope you have a few pics of the 852 pound or 386 kg of weight you had in your car to share with us.
I sold the weights ($1 per pound) so I don't have to transport them to the Saturday market anymore.
[/QUOTE]Hahahahahahahahahahaha................. Mario Andretti read your answer again .........hahahahahahahahahahahahaha
Hope you have a few pics of the 852 pound or 386 kg of weight you had in your car to share with us.
Last edited by grange3; Jul 2, 2018 at 08:59 PM.
Senior Member
Joined: Jan 2009
Posts: 361
Likes: 28
Past 03 SL500,03 C240, 07 E350, 07 ML350, 10 ML350,11&14 E350 X2 2017 E300, 2017 C350e & 2000 S500
y E300 ride is superior to the C Class models. That said, I tried the higher tire pressures but they made the ride much harder than I like. I'll stick with the 32 psi on all four corners.
BTW - I sold the weights ($1 per pound) so I don't have to transport them to the Saturday market anymore.
BTW - I sold the weights ($1 per pound) so I don't have to transport them to the Saturday market anymore.
Super Member
Joined: Oct 2017
Posts: 882
Likes: 110
2021 M550i
I had 2 2015 C300 4matic Sports, and that is an impressive car. The interior on the E class is far superior but the C class in general is a complete package and drives/handles very well for what it is.
Super Member
Joined: Oct 2017
Posts: 882
Likes: 110
2021 M550i
I purchased a 2018 E300-4matic about 3 months ago with Goodyear Runflat tires. The inflation sticker on the fuel door said that inflation should be 32psi front & rear, which I adjusted as the sticker advised. Well, the ride was loud and bouncy and just awful, it road like an old pickup truck with bad springs. Well I was quite disappointed to put it mildly. I paid a visit to my dealers tire dept. and I was told to keep the tires inflated to the maximum inflation pressure shown on the fuel filler door which is 33psi front and 39psi Rear. Sure enough the ride smoothed out and became quite pleasant, almost as smooth as an S class, the improvement was definitely noticeable. I inquired why such a big and positive difference. I was told that Runflat tires by default have much stiffer side ply walls which allow them to run for an additional 30 miles or so with a puncture, which is fine if you have a flat tire, but if you don’t then you can expect a tire that will run fine on a straight away but as soon as you make a turn in either direction then you have a tire that has no give in its’ sidewall, hence it will run like a non-neumatic or solid rubber tire like those on a tricycle and if all your driving is done in the city or suburbs then you’ll be turning left or right most of the time. So if you have Runflat tires give this fix a try, it worked well for me.
Doc
Doc
Super Member
Joined: Apr 2010
Posts: 789
Likes: 47
From: Eastern Massachusetts
2021 E450, 2020 C43, 2015 C300, 2007 C280
See my reply to riamga today on the thread "pirelli run flat tires?" On my C300 Luxury suspension, improvement continues up to 40 PSI. (That's what my gas flap sticker says too! However, my misaligned gas flap had to be replaced, and maybe the dealer replaced it with an AMG part. Well, what's good for an AMG is good for me. The main differences with an AMG are not in the suspension.)
Just yesterday I replaced my 17" Pirelli run-flats with 17" Michelin Premier A/S's on my C300 (W205). (The car in my Signature below is my first Mercedes, a 2007 C280 (W203).) The new tires seem slightly better on the few rough surfaces and tar strips I have encountered in the last 24 hours.on C300 (W205) There was one double-track railroad crossing that is rough enough to cause me to slow down below 30 mph. That seemed smoother. Turn-in, a feeling of more direct steering contact, is substantially better. (The Pirellis's were really numb.) ....
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GLC 300 Coupe
..." was told to keep the tires inflated to the maximum inflation pressure shown on the fuel filler door which is 33psi front and 39psi Rear. Sure enough the ride smoothed out and became quite pleasant,.."
I'm trying in my mind to figure out why over inflating the rear tires would give you a smoother ride.
If run-flat tires give a rougher ride due to stiff sidewalls ,then I would think stiffening the tire more with extra air pressure would just exasperate that.
I'm trying in my mind to figure out why over inflating the rear tires would give you a smoother ride.
If run-flat tires give a rougher ride due to stiff sidewalls ,then I would think stiffening the tire more with extra air pressure would just exasperate that.
