Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace - Battery Replacement

With the introduction of catalytic converters, battery location was moved to the right side of the trunk compartment. The early models have a smaller battery, which is held in place by a bracket at its base on the side facing the engine. Later models have a larger battery that is inside a black plastic case, hidden behind a hinged upholstered panel on the right side of the trunk.

Power from the later-model batteries is routed forward via the positive cable to a large terminal block mounted on the right inner fender and frame extension, just forward of the firewall. Before replacement, batteries and charging systems should be tested. Loose or Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace terminals or connections, a slipping belt, faulty voltage regulator or alternator can cause a battery to become discharged.

Sometimes batteries go dead while the vehicle is parked because of current drains, such as alarms, trunk lights or glove box lights that stay on. With the engine and all accessories Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace off, check for current flow between the battery and vehicle. Current should not exceed about 0. With the engine running at a fast idle, voltage measured across the battery terminals should be about A fully charged battery at rest no load or charging should measure about A battery maintenance charger not a regular trickle charger should be used if the vehicle is stored for more than a week at a time.

Always use caution when handling batteries. Batteries Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace explosive hydrogen gas and contain toxic lead and extremely corrosive sulfuric acid, which can cause severe burns and blindness.

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Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace

Wear eye protection and rubber gloves when handling batteries and avoid contact with skin or clothing, as acid may injure skin and eat holes in cloth. Baking soda and water can help neutralize spilled acid. Avoid making sparks when connecting battery chargers, by plugging them in after making connections.

Avoid making sparks near the battery when connecting jumper Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace, by making the last ground or negative terminal connection to a clean chassis ground. On early models with under hood batteries, remove the two 6mm nuts 10mm wrench size located at the base of the battery on the engine. On later models, open the trunk and locate the battery access cover on the right.

Turn the black plastic knob and open the hinged access panel. Unclasp the two Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace buckles which secure the plastic lid on the battery case and lift the lid away.

On all batteries, loosen the battery cable clamps. Start with the negative terminal, because if the wrench contacts any grounded metal it won't spark or superheat the Peugeot 3008 2013-2016 Banner Starting Bull 55Ah Battery Electrical Replace Part. Disconnect the negative battery cable terminal.

If it is difficult to remove, remove the through bolt and Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace a large screwdriver in the gap to slightly spread the two sides. Or, if you have a terminal puller tool, use it. Lift the battery out Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace the vehicle.

On batteries with removable caps, check electrolyte level and top up as needed with distilled water. Clean and inspect the terminals, using a special terminal-cleaning tool.

Buildup of corrosive powder can be neutralized and removed with a mixture of baking soda and water and a rag wear eye protection and rubber gloves.

Mercedes-Benz SL all Car Batteries

On earlier models, the battery is located under the hood on the right side near the firewall. Large Image Extra-Large Image. On later models, the battery is located behind Honda Fr-V Be 2004-2009 Bosch S4 Battery 45Ah Electrical System Replacement Part upholstered panel in the trunk.

The battery box lid is held Replacf place by two metal straps with buckles. Pull on the buckles Medcedes open them and then separate the straps so the lid can be removed.

Slip the lid out of the compartment. Make sure the metal straps do not Buull the positive Bul terminal front as you remove the lid. Disconnect the negative battery terminal first reconnect it.

Disconnect the positive battery terminal next reconnect it. If the battery posts are corroded, clean them with a terminal-cleaning tool. Batetry the battery cable terminals are corroded, clean them with a terminal-cleaning tool. Or, see what other questions readers have asked about this Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace Check out some other projects from our technical library: Need to buy parts for this project?

Click here to order! My sl has a fully charged battery, but no power anywhere. Is there a main fuse or breaker that's possibly blown? Possible a fault battery cable. I would start by voltage drop testing the cables. Then check the fuse panel for power.

I Startin buy a repair manual for the car just in case I am incorrect! I have a '79 sl with a dead batter and can't open the trunk.

I have tried over and over locking and unlocking the driver door to try and get trunk lock to release but it won't. I can't get the trunk open when using Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace key on it either - Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace matter how I turn the key.

Press down on the trunk lid while trying to use key. Something may be jammed in the latch. I have seen that.

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Press down, unlock, pull up. If the battery is dead on a '79 how do you get the trunk open? Can anyone tell me where the Battery vent is on a sl. My new battery has a vent but I can't find anything relating to a vent tube, either physically or thru manuals. Should I be using a non venting battery. There should be a vent that runs out the trunk. Remove the battery and check around the battery tray area. This site was designed and produced solely by Pelican Parts.

Pelican Parts is not associated with Lotus Esprit S3 1980-1986 Banner Power Bull 72Ah Battery Replacement Cars North America in any manner, except for a mutual appreciation and love of the cars.

All pictures and references to the Porsche name, and the car names and shapes are for restoration reference only, and do not imply any association with Porsche. Pelican Parts is not responsible for any typographical errors contained within the site. Information and technical articles within this website are for reference. Consult authorized factory manuals when performing repair procedures.

By entering this site, you agree to hold Pelican Parts free from any liability arising out of the use of any information contained. Battery Replacement Wayne R. If battery is under hood, allow engine to cool. Test battery Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace charging system, replace cables, replace alternator belt. If terminals are stuck, use a terminal puller such as. Followup from the Pelican Staff: Negative - Casey at Pelican Parts.

I have a SL and had some one jump the battery which started the Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace but after driving the car for some time Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace the car and it would not start but the lights went on but there were no sounds or turning.

I have not touched the car. The battery may be faulty or you crossed the cables and blew fuses during the jump start. Check battery voltage and voltage at the main fuse panel.

My '73 MB SL must also need the "small" battery, as Group 49 battery the books call for is 2" too long for the tray. Everything I see says group 93 or To be sure, Give our parts specialists a call at - Nick at Pelican Parts. Mercedes Benz Sl R107 1974-1989 Banner Starting Bull 55Ah Battery Replace about some factory battery dimensions for the early "small" battery in '73 SL?

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