Brakes and calipers on the AP-7 at Girona

Brakes and calipers

A seized trailer caliper is the single most common fault that strands a truck in a service area. We free the caliper, replace discs and pads, repair air lines and fittings and change Knorr-Bremse and Wabco relay and modulator valves. Before we release you we check pressures on both circuits.

A truck brake system is pneumatic: a compressor feeds the tanks and every pedal press is really a pressure command. So roadside failures are usually about air — leaks, saturated dryers, sooty valves — rather than friction material, which is why a good diagnosis starts by listening to the circuits with the engine off.

On the move the golden rule is don't push it: long pedal travel, grabbing or a dropping pressure gauge mean stop somewhere safe and call. An axle dragging on a seized brake chamber destroys drum, linings and tyre within a few kilometres.

What never to do

Do not force it along with a wheel locked
Do not cool a red-hot disc with water
Do not fiddle with trailer valves you do not know

Pressure dropping at rest. Parked with the engine off, the needle sinks: there is an active leak.

How it works

Tank fill and pressure-drop are checked section by section against the manufacturer's figures. Once the guilty branch is isolated (chamber, valve or line), the part is replaced with quality spares, then we prove tightness again and finish with a controlled road test confirming the brakes release fully.

1
Tightness test
Section-by-section pressure drop against factory specifications.
2
Part replacement
Chamber, valve or line fitted with approved components.
3
Adjust & grease
Pushrod stroke and slack adjuster lubrication per service schedule.
4
Test run
Verification of full release and per-wheel temperatures.

Job

Brake chamber. Part plus fitting; far less than new drum, linings and tyre.

Drain the tanks of water weekly in winter, fortnightly in summer: water in the circuit is the silent cause behind seized valves and choked dryers.

AP-7 · Girona

Half-way along the corridor, this stretch merges the flows coming off the border with those climbing from Barcelona: braking, overtaking and lane changes without pause.

Girona North/South junction, AP-7/A-2/A-11 connection. Girona service area. Mixed port-city traffic.

AP-7

7 – 9

Girona

Cataluña

24/7

24 hours · 365 days

La JonqueraAP-7 · 2 – 4 · 0 km FigueresAP-7 · 5 – 6 · 18 km GranollersAP-7 · 13 – 14 · 85 km BarcelonaAP-7 · 15 – 21 · 145 km

Questions about this stretch

Which junction am I most likely to need you at?

Girona Sud, where A-2 and coast flows merge. Late lane changes end in scrapes and hammered suspensions. If you're forced to stop, head for the service area.

If I break down right where the AP-7 splits from the A-2, where do I go?

Stay put with your lights on and send us your location: we know both branches. Don't try to roll to the junction itself — it's the worst possible stopping point.

Do you work with fleets running the France–Levante corridor?

Yes, several run this route weekly. They get scheduling priority and consolidated monthly invoicing; ask us for terms on the first call.

Other services at Girona

Mobile tyre service AP-7 · Girona Roadside mechanical breakdown AP-7 · Girona Air suspension repair AP-7 · Girona Reefer and cooling units AP-7 · Girona Diagnostics and electrics AP-7 · Girona

Brakes and calipers on the AP-7, Girona