Brake Fluid Leak

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After changing my engine oil & filter on my 1998 GS 400, service station added brake fluid to max level in fluid resevoir on my last oil change about a month ago. Following that service I noticed a break fluid leak on the groud after car sat for a few days. I have since discovered that the GS 400 owners manual states "pump brake pedal 40 times with engine off before checking fluid". I did this, then had to remove excess fluid that was above the max level in the resevoir after the dealer serviced the car. This same thing happened last year and the fluid leaked for about a month before the problem stopped permanently until this last experience.

Since the oil change a month ago, the fluid leak has deminished and hopefully it will stop completely as soon as the excess is gone from whever it is hiding somewhere under the car.

Can't imagine that the 40 pump requirement as called for in owners manual has not caused problems for other "98 GS 400 owners. Normally the fluid level with the engine off for a while is at the "MIN" level. After pumping brake 40 times the level is at "MAX". I can undersand that service station attendant didn't know about the 40 pump requirement befor checking fluid and wanted to raise the level to maximum level.

Any one else had this problem?

[TRD911]

After changing my engine oil & filter on my 1998 GS 400, service station added brake fluid to max level in fluid resevoir on my last oil change about a month ago. Following that service I noticed a break fluid leak on the groud after car sat for a few days. I have since discovered that the GS 400 owners manual states "pump brake pedal 40 times with engine off before checking fluid". I did this, then had to remove excess fluid that was above the max level in the resevoir after the dealer serviced the car. This same thing happened last year and the fluid leaked for about a month before the problem stopped permanently until this last experience.

Since the oil change a month ago, the fluid leak has deminished and hopefully it will stop completely as soon as the excess is gone from whever it is hiding somewhere under the car.

Can't imagine that the 40 pump requirement as called for in owners manual has not caused problems for other "98 GS 400 owners. Normally the fluid level with the engine off for a while is at the "MIN" level. After pumping brake 40 times the level is at "MAX". I can undersand that service station attendant didn't know about the 40 pump requirement befor checking fluid and wanted to raise the level to maximum level.

Any one else had this problem?

I had this problem but, it was after a four wheel brake job. I did not think it was because I overfilled it. i thought it was from replacing old pads. It was not much but was some. It only leaked for 1 day then I washed and it never leaked again.

I did blead the brakes and just assumed that it was from the brake job not from the 40 pumps.

Thanks for the great description very detailed.

BP

[2JayZ]

After changing my engine oil & filter on my 1998 GS 400, service station added brake fluid to max level in fluid resevoir on my last oil change about a month ago.....Any one else had this problem?

Brake fluid shouldn't be "topped off" between fluid and pad changes. Your service station probably does this to add $5 to the bill for services rendered. Probably time for a new mechanic, or at the very least a discussion with your current mechanic.

If the brake fluid is changed every time new pads are installed it will always be at the correct level. With new front and rear pads make sure the reservoir level is just below the Max line after properly bleeding the system. If you don't put a lot of mileage on your car (and all the pads are wearing well) then change your brake fluid every two (2) years. In this event, bleed the hydraulic system and refill the reservoir to the mid point between Min - Max. Same goes if you are only changing the front or rear pads.

You'll never leak one drop of brake fluid if you follow these instructions.

[rfcbuf]

After changing my engine oil & filter on my 1998 GS 400, service station added brake fluid to max level in fluid resevoir on my last oil change about a month ago.....Any one else had this problem?

Brake fluid shouldn't be "topped off" between fluid and pad changes. Your service station probably does this to add $5 to the bill for services rendered. Probably time for a new mechanic, or at the very least a discussion with your current mechanic.

If the brake fluid is changed every time new pads are installed it will always be at the correct level. With new front and rear pads make sure the reservoir level is just below the Max line after properly bleeding the system. If you don't put a lot of mileage on your car (and all the pads are wearing well) then change your brake fluid every two (2) years. In this event, bleed the hydraulic system and refill the reservoir to the mid point between Min - Max. Same goes if you are only changing the front or rear pads.

You'll never leak one drop of brake fluid if you follow these instructions.

[rfcbuf]

After changing my engine oil & filter on my 1998 GS 400, service station added brake fluid to max level in fluid resevoir on my last oil change about a month ago.....Any one else had this problem?

Brake fluid shouldn't be "topped off" between fluid and pad changes. Your service station probably does this to add $5 to the bill for services rendered. Probably time for a new mechanic, or at the very least a discussion with your current mechanic.

If the brake fluid is changed every time new pads are installed it will always be at the correct level. With new front and rear pads make sure the reservoir level is just below the Max line after properly bleeding the system. If you don't put a lot of mileage on your car (and all the pads are wearing well) then change your brake fluid every two (2) years. In this event, bleed the hydraulic system and refill the reservoir to the mid point between Min - Max. Same goes if you are only changing the front or rear pads.

You'll never leak one drop of brake fluid if you follow these instructions.

Does excess brake fluid leak only from the resevoir or somewhere elso under the car?