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SL500

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Question
Random gear shifting
Hello, it sounds as if you have a faulty transmission pressure control solenoid or contaminated fluid. Also, the electronic gear shift sensor under your gear shift could be compromised if something has spilled on it. I suggest that you have a...
Question
Car leak, ABS on, car too low warning
Hello. I would think that your strut has blown out an internal seal or a brake component such as a brake line has failed. I suggest to have a professional technician inspect the braking system and strut for leakage to...
Question
Random shifting in and of neutral position
Hello. If the noise is only heard when shifting gears it is likely that you have a worn transmission or engine mount. I'd recommend getting some help from a certified technician who can diagnose your shifting issue firsthand and inspect...
Question
Starter turning over without cranking
Hello. Two common component failures that will cause the conditions you've described are a faulty fuel pump relay or a crank position sensor. Both parts have the potential to fail intermittently when they become hot. But when they cool off...
Question
Electrical problems with keyless entry, headlights and radio
Hello. We will be happy to assist. The problem you are experiencing is common. The symptoms you have are identical to many other SL500 owner complaints. The component which causes all the misbehavior is the EIS (Electronic Ignition Switch). Symptoms...
Question
Curious on this car i saw in auto trader
You should definitely go check the car out in person and speak to the owner to get a feel for the condition of the car yourself. You should do a search on the vehicle year, make, and model for other...
Question
I need to know the dimensions (length, width, height) for the starter and auxiliary batteries.
Hello, thanks for writing in about your Mercedes-Benz SL500. Unfortunately, I cannot help you on the dimensions of the starter and battery. The trunk cannot open without battery power. You will have to jump start the vehicle using the under...
Question
Door making noise
Hello. The door hinges to your right door are loose or detaching from the body of the car. I suggest that you stop use of the right door until you can get the problem fixed. The best place to take...
Question
Should the green part under the battery in the smart key slide out or should it be glued in the key?
Hi there, thanks for writing in. I found this great YouTube video on how the key fob comes apart. It shows that the green chip board will slide out, if done carefully. Hope this helps and good luck!
Question
I need a website where i can find spare parts.
There are several such sites. If you are looking for used spare parts, the enormous catalog/database at www.car-part.com is one of the better ones. Obviously, if you are looking for new spare parts, such are already vended by VIN at...
Question
I need a website where i can find spare parts.
Here are some websites I would recommend checking for parts: Mercedes Parts Center MB Online Parts Get Mercedes Parts Your VIN number should be located on the driver's side of the windshield lower corner. You should also be...
Question
esp bas light on dash keeps coming on
There is a TSB (technical service bulletin) for this issue. It does say the brake switch is the source of the problem. At least it can be the source of the fix. But it doesn't say replace the switch. Apparently...
Question
I need the glass for the third stop light only.
All you have to do is go to a search on the internet and put in 2003 mercedes sl500 third brake light and you will have tons of options to purchase the lens or the complete light and also get...
Question
I need to know the dimensions of the starter (in the hood) and auxiliary (in the trunk) batteries.
Hello. The starting battery is: Length = 11 inches, width = 7 inches, height = 7.5 inches. I cannot find the dimensions of the battery in the trunk. In both cases, it is best to directly measure the battery you...
Question
Why is my car blowing hot air and cold air at the same time?
The answer to this depends on whether you have switched on heating, cooling (A/C) or neither. In one scenario, for example, if you have not switched on the A/C system, but the A/C is running as confirmed by a visual...
Question
I can't find the right alternator for my Mercedes-Benz. 2003 Mercedes SL500
Hello - any of the MB parts sites selling a "12v, 150 amp" alternator that fits your SL500 is selling the correct specification alternator. Your cars electrical system is nominally 12 volts. The voltage regulator within the alternator allows the...
Question
The ASR light came on and the car went into limp mode - (the gas pedal work from the middle of pressing it).
Hi there. The ASR light is on for an issue with the throttle pedal position sensor located on the gas pedal. You may be able to reset the parameters without replacing any parts. Perform the following to reset the lights...
Question
Can I have my jump starter plugged in to an outlet as if i was charging, then connect it to a batter and turn it on? Will that cha
If the vehicle battery happens to be more than 5 years (60 months) old, don't bother fooling with it. Buy a new battery and be sure the new battery is fully charged by the store before you install it, otherwise...
Question
Why does the emission inspection failed almost every time its due for DMV inspection?
Hi there: Honestly, the lack of consistent driving could be the reason why you have frequent emissions issues. If the car does not run frequently and have an opportunity to circulate built up carbon deposits on the inside of the...
Question
Stalling when reaching operating temperature
Hi There, It sounds like you may have a faulty coolant temperature sensor. This may cause the motor to be supplied with too much fuel as the computer will have trouble determining when the cold start enrichment process will need...

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