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The Independent Automotive Aftermarket Federation

DENSO offers best practice in Lambda Sensor fitment to guide workshops through extreme weather

Date: 15-Dec-2017

Extreme weather conditions around Christmas can bring nasty surprises for motorists with faulty or poor quality Lambda Sensors, highlighting the need for workshops to be prepared to fit OE quality replacements.

Lambda Sensors can be one of the most important parts of a car, helping to ensure optimal engine performance and clean emissions. However, they are also one of the most vulnerable components when exposed to extreme weather conditions.

When extreme winter conditions draw in old or low-quality components may start failing. With the right expertise workshops can benefit from a windfall in sales by capitalising on these replacement opportunities and bolstering their customer service.

Whilst detecting a faulty Lambda Sensor is important it is equally important to select the right product, and fitting it correctly to ensure a happy, returning customer.

Direct Fit fitting
Before fitting it is important to prepare the relevant area, so ensure you have:
Cleaned the contact surface for the gasket and the thread with a thread cleaning tool.
Checked the wiring loom for broken wires that have been melted or torn.
Checked the counter connector for signs such as housing damage, missing seals, dislocated pins, and the leakage of oil or water.

Once you have prepared the area, you can begin fitting the Lambda Sensor step-by-step:
1. Screw the sensor in by hand, making sure not to cross the thread.
2. Tighten to the torque specified. For DENS Direct fit, this is 35-45 Nm.
3. Wire routing – if possible use the original fixation materials and positions. Sometimes DENSO provides alternatives in the box.
4. If the wire is slightly too long, bind the cables as close to the connector as possible, and away from the exhaust and moving parts, without any folding.
5. Finally, connect and lock the connector – you should hear an audible click.

By performing a thorough and comprehensive system check and service technicians can repair minor issues, and replace faulty sensors with OE quality to prevent more serious problems from occurring whilst providing an improved service to enhance customer satisfaction and in turn, retention. 

DENSO Quality
DENSO is leading the way in an industry where the demand for longevity, efficiency and expertise is more important than ever.  
The OE quality of DENSO Lambda Sensors ensures each product offers guaranteed durability, cementing workshops’ reputation as a provider of quality and excellence, driving customer loyalty. 

Find out more
For more information about DENSO’s range of aftermarket products and to find your nearest DENSO distributor or stockist please visit: 

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