Question about 1984 Mercedes-Benz Mercedes Benz 300 Class

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Sticky rear calipers

1984 turbo SD - sticky rear calipers - second time last 3000 miles - always in hot weather.

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Check the hoses going to the calipers, they  can collapse internally and become one way valves.

Posted on Jan 18, 2009

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I have to continuously replace calipers on my jeep, what is the problem?


wonder if the rotors are too slim. If this happens the brakes get too hot as the rotor radiates away the heat. If too hot the brakes could wear out faster.

Aug 16, 2015 | 2003 Jeep Grand Cherokee

1 Answer

How hot should both front wheels feel to touch after short trips? Mine are VERY Hot Rears are considerably cooler. What could casue this?


If you have very hot front wheels not stand to touch the rims not the discs - because the discs are very hot due to brakes impact friction- then it is one thing either you have semi blocked pressure hoses on calipers or sticky calipers,or master cylinder or ABS Accumulator. But I suggest to start from the pressure hoses,by jacking up the car on a stand pump the brakes several times and try to rotate the wheels,if are tight to spin then open the bleeder on the caliper to release pressure if kept in and retry to spin the wheel. If are free the you confirm that are your front brake pressure hoses. good luck

Aug 18, 2012 | 1992 Lexus Ls 400

1 Answer

My mechanic tells me I need rear brake pads and rotors as a cost of $ 320.00. I have 60000 miles on the car. I can't believe I need brakes so soon with low mileage.


The way in which a car has driven has a very direct impact on how long brake pads will last before they have to be replaced. For example, if you spend most of your time driving long distances on the highway, you're using your brakes much less often than in stop and go urban driving. I have seen cars that need brake jobs every 75,000 miles; I've seen similar cars, with different drivers and different driving routines, go 25,000 miles between brake jobs.

I would not be surprised at all if the front brake pads (and possibly rotors) of your Accord needed to be replaced at 60k miles of typical mixed driving. I am, however, somewhat surprised that your rear brakes need service at this point. The front brakes of a car typically provide much more of a car's stopping power than the rear brakes (it's a physics thing), and so they generally wear much more quickly than the rear brakes. All that said, I recently had to replace the rear brake pads and rotors of a 2002 Passat that had only 51,000 miles on the odometer. This car's pads were worn down to the metal, and one of the rotors was badly scored. Upon speaking with the owner of the car, though, things made slightly more sense. First, the car was equipped with a very active ABS braking system, which decreases front wheel braking and increases rear wheel braking depending on road conditions. As a result, the rear brakes of that car were used much more heavily than in the "average" car. Second, and more obviously, the owner admitted to forgetting to release her parking brake several times before driving off, sometimes going several miles before realizing her mistake. The emergency brake system on most cars engages the rear brakes, and driving off with those brakes still on will put a huge amount of wear on those pads in a very short distance.

One final, distant, thought is that it's possible that your rear calipers have gotten "sticky" and are not fully releasing after they have been engaged. Accumulated moisture on the brake pistons and piston channel walls can leave rust spots that hang up piston travel, leading to this condition. At the same time, it would be unusual for both brakes on the same axle to develop this problem at the same time--this typically happens one brake caliper at a time, and you notice the condition when you car begins pulling to one side when you brake or even after you release your brakes.

May 19, 2011 | 2003 Honda Accord

2 Answers

The Turbo Charger does not seem to engage .I was led to believe that after around 30 miles per hr. it would be like haveing a passing gear. Oh yes the car is a 1984 Nercedes SD 300 series Desiel.


The turbo charger has more to do with rpms than road speed.The turbo uses exhaust gas leaving the engine to push more fresh air into the engine thus creating higher compression and more horse power.You should feel some boost above 1500 rpms if everything is working properly.If not then you should have the system checked by a dealer or a good diesel shop.Good Luck!

Apr 02, 2011 | 1984 Mercedes-Benz Mercedes Benz 300 Class

1 Answer

My 1984 Cadillac has had new brake pads and new master cylinder and new rear calipers. Now the brake pedal rises up and my left rear caliper is locking the wheel up after 3- 7 miles


I would take it up with the guy who put the caliper in. if that was you i would get it up in the air and see what you did to cause this. take a close look at the parking brake mechanism and cable, used to see frozen cables cause this on drum brakes

Dec 27, 2010 | 1984 Cadillac Eldorado

1 Answer

2000 Buick LeSabre - the rotors were replaced at about 80,000 miles and since that time, rotors only last about 8-10,000 miles before they need turning or have to be replaced. The mechanics don't seem to...


Who else has been driving this car besides you? Most of the rotors that get slight warpage is due to drivers that drive fast and follow close. Excessive braking and making quick stops then holding you foot down heavly on the pedal at stops will warp the rotors. They get red hot and when you press red hot metal it will give.The calipers are pressing the metal every time you stop. Excessive pressure on the pads while foot is off of the pedal may be due to the front brake hoses as the inner core will collapse and will keep pressure on the caliper. I have seen this a lot on gm trucks.

Apr 22, 2010 | 2000 Buick LeSabre

1 Answer

Vg30dett just had both turbos rebuilt still


how many miles you done with the new turbos?

There may still be oil in the system if it was not cleaned through correctly. should clear after a about 500 miles.

Otherwise you may have another fault, the oil ways sometimes give on these engines because of the pressure they force oil into the pots, this does not always cause the head gasket to blow and can last like that for a long time, check all around the head especially to the rear of the engine for any signs of oil.

Jan 20, 2010 | 1990 Nissan 300ZX

1 Answer

1998 f150xl regular cab brakes grab


I had a similar problem with the front disc brakes .... had to replace the calipers. In high corrosive conditions the pistons on the calipers can become contaminated and not operate smoothly ... they stick. The same thing can happen to the wheel cylinders on the rear. Try replacing the wheel cylinders on the rear (fairly cheep fix) and if that fixes them then the calipers would be next. Jim

Dec 18, 2008 | 1998 Ford F150 Regular Cab

1 Answer

Rough idle at start up


This is common and there is likely nothing to fix. It gets worse as the oil gets dirtier.

JJ

Jun 06, 2008 | 1995 Ford F350

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