What each repair involves on the B-Class, and what our invoices say it costs
Cooling-system leaks and water pumps on the B-Class
31% of the B-Class registrations in our records had at least one invoice involving this work (22 of 72, 33 invoices in all). Those visits typically cost about $1,250 (middle half $650 to $1,700, 22 priced visits since 2023, whole invoice including GST).
The cooling system moves heat away from the engine, while the pump circulates coolant, the thermostat regulates flow and the radiator releases heat. A low coolant warning, sweet smell, damp patch or rising temperature can point to a leak or poor circulation. Delaying attention can turn a small escape into overheating and damage far beyond the failed cooling part.
We begin with an XENTRY scan, then pressure-test the cooling system and use tracing dye where needed to locate the escape. We document the findings and give an honest quote before work starts for only the leaking or failed part.
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Battery replacement on the B-Class
26% of the B-Class registrations in our records had at least one invoice involving this work (19 of 72, 23 invoices in all). Those visits typically cost about $750 (middle half $400 to $1,000, 18 priced visits since 2023, whole invoice including GST).
The battery supplies power for starting and supports the car's electrical systems when demand changes. Slow cranking, dim lights, repeated warnings or electrical features behaving oddly can signal low battery health or a charging fault. Waiting can leave the car unable to start and place extra strain on the charging system.
XENTRY checks stored power-supply faults, while battery and charging-system tests separate a tired battery from alternator or drain trouble. We document the readings and give an honest quote before work starts on the confirmed cause.
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Gearbox oil changes on the B-Class
25% of the B-Class registrations in our records had at least one invoice involving this work (18 of 72, 22 invoices in all). Those visits typically cost about $1,000 (middle half $800 to $2,350, 14 priced visits since 2023, whole invoice including GST).
Gearbox oil lubricates moving parts, carries heat away and helps hydraulic controls work cleanly. Hesitant engagement, rough changes, shuddering or fluid seepage can point to degraded oil, low level or another fault. Ignoring those signs allows heat and wear to build, which can turn a service need into internal damage.
We read transmission faults and live values with XENTRY, inspect the fluid and check for leaks. The findings are documented, with an honest quote before work starts for the fluid, filter or failed seal instead of the whole gearbox.
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Brake pads, discs and wear sensors on the B-Class
22% of the B-Class registrations in our records had at least one invoice involving this work (16 of 72, 21 invoices in all). Those visits typically cost about $1,550 (middle half $700 to $1,950, 12 priced visits since 2023, whole invoice including GST).
Brake pads grip the discs to slow the car, while wear sensors warn when material is running low. Squealing, scraping, vibration or a brake warning can mean the pads, discs or sensor need attention. Driving on worn material can damage the discs and reduce braking confidence.
We use XENTRY to check brake warnings, then measure pad material and disc condition at each wheel. Photos and measurements support an honest quote before work starts, limited to the worn pads, discs or sensor.
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Brake calipers, hoses and ABS faults on the B-Class
15% of the B-Class registrations in our records had at least one invoice involving this work (11 of 72, 12 invoices in all). Fewer than 8 of those visits since 2023 carry a comparable whole-visit price, so we quote this on WhatsApp after diagnosis.
Calipers apply the pads, hoses carry hydraulic pressure, and the ABS pump and sensors help the wheels keep grip under hard braking. A soft pedal, pulling, dragging wheel, brake warning or unexpected ABS action deserves inspection. Delay can overheat the brakes, wear other parts and reduce control when you need it.
We scan the brake system with XENTRY, inspect for hydraulic leaks and binding, and compare wheel-speed signals. We document the evidence and give an honest quote before work starts for the faulty caliper, hose, pump or sensor.
Sensors, switches and control modules on the B-Class
14% of the B-Class registrations in our records had at least one invoice involving this work (10 of 72, 12 invoices in all). Fewer than 8 of those visits since 2023 carry a comparable whole-visit price, so we quote this on WhatsApp after diagnosis.
Sensors report conditions, switches send commands and control modules coordinate the car's systems. Warning messages, intermittent features, battery drain or equipment that stops responding can come from the component, its wiring or its power supply. Guessing can replace sound parts while the real fault continues and affects linked systems.
We use XENTRY to trace stored faults and live values, then test voltage, wiring and switch inputs at the affected circuit. The test trail is documented and the honest quote comes before work starts on the sensor, switch, module or wiring actually at fault.
Aircon compressor faults on the B-Class
14% of the B-Class registrations in our records had at least one invoice involving this work (10 of 72, 10 invoices in all). Those visits typically cost about $1,250 (middle half $1,050 to $1,900, 10 priced visits since 2023, whole invoice including GST).
The compressor circulates refrigerant so the aircon can remove heat and humidity from the cabin. Warm air, weak cooling, unusual noise or cooling that cuts in and out can signal a compressor fault or another system problem. Waiting can spread debris or place more load on connected parts, making the repair broader.
We review XENTRY compressor commands, compare system pressures and vent temperature, and trace any leak. We document the results and give an honest quote before work starts, replacing the compressor only when testing proves it has failed.
This aircon repair is covered by a warranty of at least 6 months.
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Suspension absorbers, arms, bushes and links on the B-Class
11% of the B-Class registrations in our records had at least one invoice involving this work (8 of 72, 9 invoices in all). Those visits typically cost about $1,450 (middle half $900 to $2,300, 8 priced visits since 2023, whole invoice including GST).
Absorbers control body movement, while arms, bushes and links keep the wheels located as the road changes. Knocks, wandering, excess bouncing or uneven tyre wear can point to wear or looseness. Leaving it can damage tyres and nearby joints, while steering and braking feel become less settled.
We combine an XENTRY chassis scan with a road test, lift inspection and checks for play at the mountings and joints. The findings are documented, then we give an honest quote before work starts for the failed absorber, arm, bush or link.
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