Sooner or later, everyone will have problems starting their The first place to look for trouble in your starting system is your battery. The battery is perhaps the most important electrical component on the car, and due to its design and nature, it is perhaps one of the Renault Clio B/C57 5/357 Mk2 1990-2005 Vetech Battery 55Ah Electrical Part troublesome.
Before doing anything drastic like replacing your starter or looking at your fuel injection ECU, you should make sure that your battery is in good condition. Begin by Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part the voltage on the battery posts using a voltmeter. Place the meter's probes on the posts of the battery, not the clamps. This will give the most accurate indication of the voltage in the battery. A normal battery should read a voltage slightly above 12 volts with the car sitting still and no electrical devices on.
The small trunk light in the front trunk shouldn't make a difference in the voltage reading. A typical reading would be in the If the reading is 12 volts or less, then the battery needs charging or needs to be replaced with a new one. To be Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part, you can take your battery to your local auto parts store for testing.
The car was running perfectly fine--I had just driven about miles the previous day, so it should have been well charged. The next morning, I got in the car, and it started fine. I drove about 3 miles and stopped off to pick something up. I shut off Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part car and was inside three minutes at the. When I got to the parking lot, the battery was completely dead. There was not even enough power left to open the power door locks.
It did turn out to be a complete battery failure. I was surprised because I'd never had a battery fail like this before--it always seemed to give out slowly. Some of the informal research I've done since then seems to indicate that the newer technology used in these batteries tends to lead to this type of occasional failure.
When the car is running, the alternator should be outputting anywhere from about If you don't see any significant change in the voltage after you start up the car, then your alternator could be faulty.
If the voltage is high Bxttery the battery Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part 17 volts or higherthen the alternator's regulator is most likely faulty and needs to be replaced.
Overcharging the battery at these higher levels may cause it to overflow and leak acid all over the inside of your car.
See Project 82 for instructions on how to replace the alternator. Do not ever Podsche the battery ground strap from the battery while the car is running. The battery acts as an electrical capacitor and filter on the entire electrical system, and the car's electrical components expect it to be there, even if it doesn't hold a Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part. Disconnecting the battery terminals while the engine is running can seriously damage the computers Porsch systems of the car.
Sometimes it may be necessary to reset the computers of the car, for example, to clear 997 codes. Some books recommend disconnecting both terminals Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part the battery and touching the unconnected terminals together to empty all of the capacitors and stored electricity in the.
While this works, it can possibly create a quick electrical shock to the. A Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part I learned Electriical Tony Callas of Callas Rennsport is instead to place a resistor across the two terminals or simply use Porschhe diagnostic lamp that will act like a resistor.
Doing this will slowly dissipate the electricity over a few seconds instead of all at. Once Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part have determined that your battery is fine, you should make sure 1966-22012 your engine ground strap is properly installed.
The engine and transmission are mounted to the chassis using rubber mounts. While great for the suspension, the rubber mounts make lousy electrical conductors. To compensate for this, there is an engine ground strap that electrically connects the transmission and engine assembly to the chassis.
It's located on the right side behind the rear wheel Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part Figure 1. Check the strap to make sure it's not corroded or damaged. Make sure that you clean both ends of the strap and Batgery areas that it mounts to Prosche the chassis. With all Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part connections, it's a good Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part to clean the area that you are mounting to with rubbing alcohol and Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part to sand the area lightly with some fine-grit sandpaper or a wire brush.
Doing so Pary remove any Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part, grime, surface rust, or other corrosion that may interfere with creating a good electrical connection. While you're at it, clean up the battery terminals as well in a similar manner. If you have discovered that your battery is weak and needs replacement, then you need to replace it. Follow the steps in the photos of this project. When purchasing a new battery, I recommend the newer-style sealed, or "maintenance free," types.
911 batteries may be more prone to damage when you deep cycle them let them run all the way downbut require less preventative maintenance. Check the freshness date on the battery that you are purchasing and avoid any batteries that are more than six months old. You disconnect the battery by disconnecting the negative or ground lead from the battery. This will result in a short circuit, which would be quite dangerous. The worst case scenario would probably be where your wrench hit the chassis and was instantly welded there by the current, and then the battery overheated and exploded, because you couldn't break the connection.
In other words, be sure to disconnect the ground. If your car has the Bozch radio in Porscbe, be aware that you will Electricxl the radio code if you disconnect the battery. ES900 Exide G80 Marine and Multifit Gel Leisure Battery 80Ah Porsche dealer can look this code up for you if you don't have it, but that can be a huge pain, and most dealers will Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part you for the service.
Leaving your lights on in your car can seriously damage the battery. Automotive batteries are not typically deep-cycle batteries, which means they do not like to be fully discharged. If Elwctrical leave your lights on and drain your battery several times, then you will weaken it each time and have to replace it sooner than later.
If Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part need to jump start your Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part, then you should refer to the section in your owner's manual. The procedure is very straightforward and very similar to other cars. The Carrera has a few power-saving stand-by modes that it will enter after certain periods of time.
If the ignition key is removed, accessories such as the trunk Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part, interior lamp, radio.
If the car is locked, then these will switch off after 10 minutes. If the car is not started or unlocked for more than 5 days 7 days on the and later modelsthen the remote control standby function is switched off, and you will need to unlock the car using the key. After you disconnect your battery, the DME computer will lose some of its history memory used for adapting Batteery fuel injection.
As a result, the idle may fluctuate, and the fuel Lancia Lybra 839Ax 1999-2005 Bosch S3 Battery 70Ah Electric System Replace Part mixture may be slightly off as the car relearns its settings. This charger plugs into the Boscy when you are not using the car, and constantly monitors the battery, charging it as needed when the voltage runs.
Every car 997 has internal electrical leakage that will cause it to become fully discharged over time if not properly maintained. Boach trickle charger can keep your battery fresh year-round, even if you don't drive the car for 1966-20112 at a time. 74hA of cheap chargers though, as they can accidentally overcharge Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part battery, causing more harm than good.
The infamous drivetrain ground strap is one of the easiest parts on the car to overlook, yet it can cause so many electrical troubles. Since the transmission and engine are insulated by rubber mounts, the ground strap is the only significant ground to the engine. If the ground strap is Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part or missing, then the current that turns the starter must travel through the engine harness or other small points of contact.
When I was working my project Boxster for one of my other books, I forgot to install the ground strap. When I went to start the car, it wouldn't start, and instead, the current ran through the Porsche Boxster 986 987 1996-2011 Vetech Battery 80Ah Battery Replacement side stainless steel brake lines and completely cooked the line. That was a new experience for me--don't forget your ground strap!
Large Image Extra-Large Image. The battery is located in the front trunk compartment on the Psrt.
Turn the plastic tie-downs to remove the black plastic cover yellow arrows. Always disconnect the black colored negative or ground connection first from the battery post green arrow. When you disconnect the ground from the battery, make sure that you Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part or tape the ground lead aside--you Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part want it accidentally falling on the terminal of the battery while you're working and effectively connecting up the battery.
If you are replacing the battery, be sure to properly hook up the vent hose once you have installed it in place blue arrow. The yellow arrow shows the Boach for the Battery Tender harness. You can route it through the fire wall see Figure 3 of Pelican Technical Article: Installing Litronic Headlamps Porwche the Porsche Carreraor you can simply zip-tie it to the plastic mesh located on the Renault 19 B/C53 D53 L53 Mk2 1989-1996 Banner Power Bull 62Ah Battery Replace.
If you are removing the battery, then simply loosen and remove the hold-down clamp that attaches the battery to the chassis yellow arrow. Stand Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part the trunk and lift the battery out of the car from there they are quite heavy.
The inset in the upper left-hand corner shows the permanent attachment of the Battery Tender cable to the negative lead. A handy device I Elecyrical to install on all my cars is a battery cutoff switch lower inset.
Installation of this Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part on the battery ground allows you to remove the green knob and shut off all power to the car. An added tip--connect a small inline fuse from one end to the other, and a small amount of current will continue to flow, keeping your radio and DME from being cleared out when the battery is disconnected. Whenever I pick up a new car, I almost always install one of these within the first few weeks.
The Battery Tender is a necessary tool if you're not planning on driving your car everyday. It plugs into the wall and trickle-charges the Porsche 911 964 993 996 997 1966-2012 Bosch S4 Battery 74Ah Electrical Part so that it won't run. Although the kit comes with alligator clips for temporary installations, I prefer to hard-wire the charger into the battery, and simply leave the charging unit in the bottom of the front trunk.
Or, see what other questions readers have asked about this article Porsche Carrera9997 Carrera Check out some other projects from our technical library: Porsche Carrera Technical Articles.