DAYU Auto Workshop/Garage

20/04/2026

We restore life to the dead

20/04/2026

just finished engine overhaul and now doing some tests

20/01/2026

It's about repainting process

08/10/2025

Every time you step on the brake pedal, your car turns massive amounts of motion into heat. The part that takes the hit is the brake pad, and what it’s made of makes all the difference in safety, comfort, and lifespan. Let’s break it down

🔧 Semi-Metallic Brake Pads

Made with 30–65% metal (steel, iron, copper) mixed with friction materials.
✅ Strong braking power
✅ Handles high heat
✅ Durable under load
Can be noisy, make more dust, and wear rotors faster
Best for: SUVs, pickups, trucks, performance cars, or vehicles that carry heavy loads or tow.
Ceramic Brake Pads

Built from ceramic fibers + bonding agents + copper fibers.
✅ Very quiet
✅ Low dust (clean wheels!)
✅ Long life, stable in heat
More expensive, not as strong for extreme heavy-duty use
Best for: Small cars, family sedans, crossovers great for city and highway driving.

Organic / NAO Brake Pads

Made from resins, fibers, and fillers.
✅ Smooth & quiet braking
✅ Budget-friendly
Wear out faster, fade when hot, not for heavy cars
Best for: Small cars, short commutes, light driving.

So Which One Do You Need?
City cars (Vitz, Honda Fit): Ceramic or organic smooth & clean.

Family sedans & crossovers (Axio, CX-5): Ceramic for balance, semi-metallic if loaded often.

SUVs & pickups (Prado, Hilux, Land Cruiser): Semi-metallic for strength.

Performance cars (WRX, Golf GTI): Semi-metallic or performance ceramics for maximum bite.

Brake pads may look like simple blocks of friction, but their material decides how confidently your car can stop. Choosing the right set isn’t just about saving money it’s about matching your driving style, vehicle weight, and road conditions.
The right pads = longer life, safer braking, and peace of mind every time you hit the pedal.

07/10/2025

Hidden beneath the body of your vehicle is a small but powerful component: the Pitman arm. It may not look like much, but it plays a critical role in translating the rotation of your steering wheel into the side-to-side motion that turns your wheels. In short, it’s the bridge between your hands and the road.

A worn-out pitman arm develops excessive play at the joint. Instead of transmitting steering input precisely, it allows slack. That slack shows up as:
Loose steering feel the wheel turns, but the car doesn’t immediately respond.
Wandering on the road difficulty keeping the car in a straight line.
Uneven tire wear because wheels don’t track straight.
Clunking or knocking noise especially when turning over bumps.

The Dangers of Driving with a Faulty Pitman Arm
Loss of Control As the play worsens, steering response becomes unpredictable. In extreme cases, the arm can disconnect, leaving you with almost no control of direction.
Accidents Waiting to Happen At high speeds, delayed steering response can mean the difference between avoiding an obstacle and a collision.
Damage to Other Components A bad pitman arm stresses the idler arm, drag link, and steering gearbox, leading to a chain reaction of wear and expensive repairs.
Tire & Suspension Damage Constant misalignment chews through tires and strains suspension joints.
The pitman arm is not just another suspension part it’s a primary steering safety link. Replacing a worn one restores steering accuracy, improves safety, saves tires, and prevents bigger repairs down the line.
If your steering feels loose, vague, or makes noises, don’t ignore it. A faulty pitman arm isn’t just an inconvenience it’s a serious safety risk every time you take the wheel.

06/10/2025

The engine mount, Its job is simple yet vital. Engines naturally shake, twist, and push against their restraints every time fuel ignites inside the cylinders. Left unchecked, those vibrations would travel directly into the chassis, turning every drive into a noisy, uncomfortable experience. The mount steps in as the buffer a block of rubber or hydraulic-filled material that absorbs vibration, holds the engine in position, and allows just enough movement for smooth operation.

Over time, the story changes. The rubber hardens, cracks, or separates. Hydraulic fluid seeps away. Slowly, the mounts lose their ability to isolate vibration. What once felt like a smooth idle becomes a constant buzz through the steering wheel. A simple gear shift starts producing knocks or clunks. Pop the hood, and the engine rocks more than it should, straining against tired mounts.

The consequences don’t stop at comfort. A weakened mount transfers extra stress into the drivetrain. CV joints, exhaust flex pipes, hoses, and even the gearbox bear the shock that the mount should have absorbed. In severe cases, a failed mount can let the engine shift dangerously, tearing connections or striking the chassis.

Yet with healthy mounts, none of this happens. The engine sits securely, vibrations are dampened, and power flows smoothly to the wheels. The car feels refined, stable, and safe exactly as it was engineered to be.

Engine mounts rarely get attention, but they write a critical chapter in the story of comfort, safety, and longevity. When they weaken, the whole car tells the tale.

Send a message to learn more

05/10/2025

It always starts in silence. A car is filled at the pump, the nozzle clicks, the tank is full, and the driver drives away without a second thought. But inside the fuel system, a storm is already brewing.

The wrong fuel is the first kind of betrayal. When diesel flows into a petrol tank, the combustion chambers are robbed of the explosive mist they need. Spark plugs choke, injectors gum up, and the engine coughs as if rejecting the very lifeblood meant to sustain it. Reverse the mistake petrol in a diesel tank and the damage cuts even deeper. The high-pressure pump, designed to live on the heavy lubrication of diesel, now grinds itself to pieces on the thin film of petrol. Metal shavings enter the lines, injectors scar, and the cost of repair grows faster than the driver can comprehend.

But perhaps worse than the wrong fuel is contaminated fuel. Water mixed with petrol. It looks harmless until it separates, one layer clear, the other cloudy. Water cannot ignite, so every drop that enters the chamber is dead weight. The engine stumbles, stutters, and corrodes from within. Pumps rust, injectors seize, filters clog, and the catalytic converter silently drowns in inefficiency.

Yet, when good petrol flows through the system, the difference is undeniable. The combustion is crisp, the injectors sing in precision, the pump hums smoothly, and the engine rewards with efficiency, power, and longevity.

Fuel, unseen by most, is the very heartbeat of an engine. Wrong fuel, bad fuel, or fuel laced with water each is a slow poison. But good fuel, clean and pure, is the invisible promise that every drive will begin and end in silence, just as it should.

03/10/2025

Ever wondered what’s really making noise in your CVT gearbox?
A CVT (Continuously Variable Transmission) is designed to be quiet and seamless, but when noise creeps in, the bearings are often the hidden culprit. Here’s how to understand it:
What bearing noise sounds like
Whine or hum that rises with speed (not necessarily engine RPM but vehicle speed).
Growling or grinding under load (accelerating, especially uphill).
Noise may reduce when coasting but return when throttle is applied.
Often directional louder in Drive or Reverse, depending on which bearing is stressed. How bearing noise differs from other CVT noises

1. Pulley Whine (Hydraulic/Pump noise)
High-pitched and constant.
Usually changes with engine RPM, not vehicle speed.
Linked to pump pressure or pulley system resonance.

2. Belt/Chain Slip
Feels like shudder or judder, especially on take-off.
Noise is less of a whine and more of a vibration with slipping sensation.
Often accompanied by delayed acceleration.

3. CVT Fluid Issues
Old/dirty fluid can cause humming or buzzing.
Noise may improve immediately after fluid change.

Fluid-related noises are less metallic and more “hydraulic.

4. Worn Bearings
Mechanical grind/whine that gets louder with speed.

Noisy even after fluid change.

Sometimes you can feel the vibration through the shifter or cabin floor.

A worn bearing sheds metal particles into the CVT fluid. These particles circulate, damaging pulleys, chains, and even the pump. What starts as a Ksh. 15,000–30,000 bearing repair can easily become a Ksh. 100,000
So next time your CVT sings a song, listen closely. If it’s a whine or growl that follows speed, chances are your bearings are telling you it’s time for attention before the whole transmission pays the price.

29/08/2025

Mazda CX-5 2019 | Precision Diagnosis. Perfect Repair. Happy Client. 🚗🔧

Sometimes, the smallest components cause the biggest problems and that’s where diagnosis makes all the difference.

A client recently brought in their Mazda CX-5 2019 diesel 4WD, worried about unusual noises from the rear. After a detailed inspection, we found the issue:

🔹 The right-hand side differential oil seal had completely worn out, causing the entire differential fluid to leak out.
🔹 Without proper lubrication, the right-hand side bearing inside the differential was already suffering serious damage.
The Mazda CX-5 2019 diesel AWD uses an electronic on-demand rear differential, designed to intelligently distribute torque between the front and rear wheels. For this system to work flawlessly, it relies on precision-machined bearings and constant lubrication from high-grade differential oil.

When the oil seal fails and fluid drains out:
⚠️ Bearings overheat due to friction
⚠️ Metal-to-metal contact accelerates wear
⚠️ Entire diff units can seize or fail completely

In many cases, this forces owners to replace the entire rear differential assembly, which can cost up to Ksh 70,000 or more 😬.

Instead of rushing into a costly replacement, we trusted our step-by-step diagnosis:

✔ Replaced the worn-out seal
✔ Installed a brand-new OEM-spec bearing
✔ Flushed and refilled with the correct grade differential oil
✔ Ran dynamic load tests to ensure the diff works perfectly under stress
The differential is now running smooth, quiet, and strong like the issue never existed. Most importantly, we saved the client from an unnecessary Ksh 70,000 replacement bill.
When dealing with advanced systems like the CX-5’s AWD differential, guesswork is costly. That’s why we rely on:
Accurate diagnosis
Research-backed solutions
Flawless repair ex*****on

At our workshop, we don’t just fix cars… we restore confidence.

21/08/2025

The other day, a client pulled into the garage looking frustrated.
"Bro, every time I open the radiator cap, bubbles come up… and now the coolant is spilling out!" 😩

If you’ve ever seen this, your car is trying to tell you something.
Bubbles inside the radiator aren’t normal they’re warning signs.

maybe;
1. Blown Cylinder Head Gasket

This is the most common cause.
When the gasket fails, combustion gases escape into the cooling system and create pressure that’s when you see bubbles.

Look out for these clues:
✅ Engine overheating
✅ Loss of power
✅ White smoke from the exhaust
✅ Oil mixing with coolant (creamy oil)

2. Cracks in the Engine Block or Cylinder Head

Sometimes tiny cracks form where you can’t see them.
They let combustion gases sneak into the cooling system, causing bubbling and pushing coolant out.

Hint: If your coolant keeps disappearing but there’s no visible leak, this might be the culprit.
3. Air Trapped in the Cooling System

If you’ve refilled coolant recently and didn’t bleed the system properly, air pockets can get trapped.

Effects:
⚠️ Random overheating
⚠️ Irregular thermostat readings

4. Faulty Radiator Cap

That tiny cap does a huge job!
If it’s loose or worn out, the system can’t hold pressure, making the coolant boil earlier than it should.

Result: Bubbles… and coolant spilling everywhere.

5. Using the Wrong Coolant

Topping up with plain water or the wrong coolant? Bad idea 😬
It makes the system overheat faster, causes bubbles, and leaves scale deposits inside the radiator.
Do this;
Check the radiator → Replace it if it’s damaged or can’t hold pressure.
Bleed the cooling system → Remove all trapped air properly.
Test for combustion leaks → Use a leak tester to check if exhaust gases are entering your coolant.
Inspect the head gasket & engine block → If bubbling continues, check for internal damage.
Always use the recommended coolant → Shortcuts will cost you later!

Bubbling and coolant spitting out are not normal.........

15/07/2025

Not every car problem shows up with a warning light. Some show up quietly ,through dragging wheels, reduced coasting, and fuel bills that keep climbing.
That’s exactly what we faced recently with a Mazda Axela that rolled into our workshop.
The owner had been noticing a slight pull to one side, and one front wheel always felt hotter after every drive. No dashboard warnings. No brake noise. Just resistance… and rising fuel consumption.
At a glance, everything seemed okay. Brake fluid was intact. Pads looked decent. But when we lifted the car and spun the wheels, the front left wheel barely moved — held back by a brake caliper that refused to let go. Diagnosis: A stuck brake caliper piston caused by dirt, corrosion, and worn rubber seals that let in moisture over time. Solution: We stripped down the caliper, cleaned and polished the piston, replaced the inner seals and dust boots, re-greased the slide pins, and did a full brake fluid bleed.
Once back on the road, the difference was night and day: Smooth rolling
No more heat build-up
Better fuel economy
No pulling or drag
Longer life for your discs and pads
Signs of a Stuck Caliper in Your Mazda Axela:
Car pulling to one side
Burning smell after a drive. Reduced coasting/freewheeling
Uneven or premature brake wear. Hot wheel or disc after normal driving
Don’t ignore the signs one stuck caliper can quietly destroy your pads, discs, and fuel budget. Brought to you by Dayu Auto Workshop
📞 Call/Text/WhatsApp: 0746560486 / 0734671080
📍 We diagnose, repair, and revive with precision.

22/06/2025

One of the jobs we’ve tackled today at the workshop involved replacing a worn-out wheel bearing hub on a Mazda Demio (DY series/generation).

We’d like to take a moment to share with you some of the common signs of a failing wheel bearing hub, so you can catch the issue early and avoid further damage:

🔧 Key Symptoms Include:

A humming, rumbling, or growling noise that intensifies with acceleration or while turning.

A loud, constant whining or grinding sound while the vehicle is in motion.

Clunking noises when driving over uneven surfaces or potholes.

Looseness or excessive play in the steering, making it feel vague or unstable.

Steering wheel vibrations that vary with vehicle speed or direction.

ABS system issues, often linked to a failed ABS sensor integrated into the wheel hub bearing.

If you’re experiencing any of these symptoms, don’t ignore them—they’re warning signs that your wheel hub may be compromised. Feel free to reach out, and we’ll be glad to serve you with expert care and quality service.

Good evening from all of us at Dayu Auto Workshop.