Volkswagen Golf Service & Repair Manual: Performing battery test with Midtronics -MCR340V- battery tester

Volkswagen Golf Service & Repair Manual / Electrical system, general information / Starter- current supply- CC / Checking battery / Performing battery test with Midtronics -MCR340V- battery tester

Prerequisites:

WARNING

Before working on the battery, read through the warning and safety regulations carefully, and comply with them → Chapter.

It is not permissible to test or charge batteries whose magic eye shows light yellow. Do not slave/jump start the vehicle!

Danger of explosion when checking and charging or slave/jump starting.

These batteries must be renewed.

–	Read general description → Chapter.

–	Perform visual check → Chapter.

–	Open bonnet or cover for other installation location of battery.

–	Determine whether battery type is “Standard” or “AGM”.

–	Remove covers from battery positive and negative terminals.

–	Use wing covers or other kinds of cover before you use equipment in engine compartment or interior.

–	Close all doors.

Note

Battery temperature must be at least 10°C.

For additional information, refer to the → operating manual INC 940.

Perform test:

WARNING

It is not permissible to test or charge batteries whose magic eye shows light yellow. Do not slave/jump start the vehicle!

Danger of explosion when checking and charging or slave/jump starting.

These batteries must be renewed.

–	Switch off ignition and all electrical consumers.

–	Check magic eye on batteries with magic eye → Chapter.

–	Switch tester on.

–	Connect red terminal “+” of tester to positive terminal.

–	Connect black terminal “-” of tester to negative terminal.

Note

Ensure test clamps have a good contact!

–	Select “In vehicle” or “Outside vehicle”.

–	Select “Warranty test”.

Note

Use the print function of the Midtronics -MCR340- tester if the test results are required for handling warranty applications.

–	Select battery type “Standard ” or “AGM”.

–	Make a note of the DIN value of the battery as shown on the battery sticker. If there is no DIN value on the sticker, make a note of the SAE value.

–	Enter DIN value in tester and perform battery test → operating manual MCR340V.

–	If you are using SAE value, access “Miscellaneous” menu and change from “DIN” to “SAE” → operating manual MCR340V.

Note

Always use DIN value from battery sticker! Otherwise, test result will be falsified.

Assessing test results

Results of battery test:

Battery test results	Measures
Battery OK	None
Good - charge	Charge battery → Chapter.
Use Incharge	Charge battery → Chapter.
Renew battery	Renew battery → Electrical system; Rep. gr.27
Battery cell defective	Renew battery → Electrical system; Rep. gr.27

General description

WARNING Danger of injury. Before working on the battery, read through the warning and saf ...

Dealing with problems with Midtronics -MCR340V- battery tester

Under certain circumstances, the display may show errors or messages according to status. The most frequent display messages are listed below, ...

Other materials:

Removing and installing rear axle, torsion beam axle
Special tools and workshop equipment required Torque wrench -V.A.G 1332- Engine and gearbox jack -V.A.G 1383 A- ...

Removing and installing interior aerial 1 for entry and start authorisation -R138-
Special tools and workshop equipment required Release lever -80 - 200- Removing – Remove centre console insert → General body ...

Working with the air conditioner service station
Caution If there is evidence to suggest that chemical substances have been added in the vehicle to seal leaks, do not connect the air conditioner service station and do not extract the refrigerant. ...